ASSET PURCHASE AGREEMENT


                            Dated as of November 30, 1999


                                     By and Among


                                 ISONICS CORPORATION
                              a California corporation,

                                         and

                           EAGLE-PICHER TECHNOLOGIES, LLC
               a limited liability company formed under Delaware law

                                         and

                            EAGLE-PICHER INDUSTRIES, INC.
                                 an Ohio corporation



                                  TABLE OF CONTENTS



                                                                                  PAGE
                                                                               
I.  DEFINITIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  1
      1.1.  Definitions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  1

II. PURCHASE AND SALE OF ZINC ASSETS . . . . . . . . . . . . . . . . . . . . . . .  1
      2.1   Zinc Assets. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  1
      2.2   Assumed Liabilities. . . . . . . . . . . . . . . . . . . . . . . . . .  2
      2.3   Purchase Price . . . . . . . . . . . . . . . . . . . . . . . . . . . .  2
      2.4   Net Current Asset Value and Closing Purchase Price Adjustment. . . . .  3
      2.5   Allocation of Purchase Price . . . . . . . . . . . . . . . . . . . . .  5
      2.6   Assignment of Contracts and Rights . . . . . . . . . . . . . . . . . .  5
      2.7   Availability of Personnel. . . . . . . . . . . . . . . . . . . . . . .  6
      2.8   Parent Guarantee . . . . . . . . . . . . . . . . . . . . . . . . . . .  6

III. SILICON TRANSACTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  6
      3.1   Silicon Purchase . . . . . . . . . . . . . . . . . . . . . . . . . . .  6

IV. REPRESENTATIONS AND WARRANTIES OF ISONICS. . . . . . . . . . . . . . . . . . .  7
      4.1   Representations and Warranties of ISONICS. . . . . . . . . . . . . . .  7

V. REPRESENTATIONS AND WARRANTIES OF E-P . . . . . . . . . . . . . . . . . . . . .  7
      5.1   Representations and Warranties of E-P. . . . . . . . . . . . . . . . .  7

VI. COVENANTS AND AGREEMENTS OF ISONICS. . . . . . . . . . . . . . . . . . . . . .  7
      6.1   Corporate and Other Action . . . . . . . . . . . . . . . . . . . . . .  7
      6.2   Access to Information. . . . . . . . . . . . . . . . . . . . . . . . .  7
      6.3   Conduct of Business to Closing . . . . . . . . . . . . . . . . . . . .  7
      6.4   Consents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  9
      6.5   Covenant Not to Compete. . . . . . . . . . . . . . . . . . . . . . . . 10
      6.6   Confidentiality. . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
      6.7   Access to Information; Cooperation After Closing . . . . . . . . . . . 10

VII. COVENANTS AND AGREEMENTS OF E-P . . . . . . . . . . . . . . . . . . . . . . . 11
      7.1   Corporate and Other Action . . . . . . . . . . . . . . . . . . . . . . 11
      7.2   Assumed Liabilities. . . . . . . . . . . . . . . . . . . . . . . . . . 11
      7.3   Confidentiality. . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
      7.4   Nonsolicitation. . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
      7.5   Agreement Concerning Acquisition and Voting of ISONICS Common
            Stock or Derivative Securities . . . . . . . . . . . . . . . . . . . . 11
      7.6   Agreement Not To Cause a Rule 13e-3 Transaction. . . . . . . . . . . . 12
      7.7   Compliance with SEC Reporting Requirements . . . . . . . . . . . . . . 12

                                      -i-


VIII. SURVIVAL; INDEMNIFICATION. . . . . . . . . . . . . . . . . . . . . . . . . . 13
      8.1   Survival of Representations, Warranties and Covenants. . . . . . . . . 13
      8.2   Indemnification. . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
      8.3   Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
      8.4   Limitations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

IX. CONDITIONS OF E-P'S OBLIGATIONS. . . . . . . . . . . . . . . . . . . . . . . . 15
      9.1   Representations and Warranties True. . . . . . . . . . . . . . . . . . 15
      9.2   Covenants and Agreements--No Default . . . . . . . . . . . . . . . . . 15
      9.3   No Material Adverse Change . . . . . . . . . . . . . . . . . . . . . . 15
      9.4   Consents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
      9.5   Closing Documents. . . . . . . . . . . . . . . . . . . . . . . . . . . 16
      9.6   Adverse Proceedings. . . . . . . . . . . . . . . . . . . . . . . . . . 16

X. CONDITIONS OF OBLIGATIONS OF ISONICS. . . . . . . . . . . . . . . . . . . . . . 16
      10.1  Representations and Warranties True. . . . . . . . . . . . . . . . . . 16
      10.2  Covenants and Agreements; No Default . . . . . . . . . . . . . . . . . 16
      10.3  Consents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
      10.4  Closing Documents. . . . . . . . . . . . . . . . . . . . . . . . . . . 17
      10.5  Adverse Proceedings. . . . . . . . . . . . . . . . . . . . . . . . . . 17

XI. CLOSING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
      11.1  Time and Place of Closing. . . . . . . . . . . . . . . . . . . . . . . 17
      11.2  Performance by ISONICS . . . . . . . . . . . . . . . . . . . . . . . . 17
      11.3. Performance by E-P . . . . . . . . . . . . . . . . . . . . . . . . . . 18

XII. TERMINATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
      12.1  Termination. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
      12.2  Effect of Termination. . . . . . . . . . . . . . . . . . . . . . . . . 19

XIII. MISCELLANEOUS PROVISIONS . . . . . . . . . . . . . . . . . . . . . . . . . . 19
      13.1  Expenses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
      13.2  Further Assurances . . . . . . . . . . . . . . . . . . . . . . . . . . 20
      13.3  Notices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
      13.4  References and Construction. . . . . . . . . . . . . . . . . . . . . . 21
      13.5  Entire Agreement . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
      13.6  No Public Announcement . . . . . . . . . . . . . . . . . . . . . . . . 22
      13.7  Counterparts; Effectiveness. . . . . . . . . . . . . . . . . . . . . . 22
      13.8  Severability of Provisions . . . . . . . . . . . . . . . . . . . . . . 22
      13.9  Exhibits and Schedules . . . . . . . . . . . . . . . . . . . . . . . . 22
      13.10 Waivers and Amendments . . . . . . . . . . . . . . . . . . . . . . . . 22
      13.11 Successors and Assigns . . . . . . . . . . . . . . . . . . . . . . . . 23
      13.12 Governing Law. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
      13.13 Dispute Resolution . . . . . . . . . . . . . . . . . . . . . . . . . . 23

                                     -ii-


EXHIBIT A DEFINITIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  1

EXHIBIT B REPRESENTATIONS AND WARRANTIES OF ISONICS. . . . . . . . . . . . . . . .  1

EXHIBIT C REPRESENTATIONS AND WARRANTIES OF E-P. . . . . . . . . . . . . . . . . .  1



SCHEDULES:

      A           -     Zinc Assets
      2.2         -     Assumed Liabilities
      2.4(a)      -     Inventory
      2.5         -     Tax Allocation
      3.1(a)      -     Specifications and delivery schedule for Silicon - 28
      3.1(b)      -     Form of Warrant
      11.2(a)     -     Form of Bill of Sale
      11.2(b)     -     Form of Assignment and Assumption Agreement
      11.2(c)     -     Opinion of Counsel to Isonics
      11.2(g)     -     Form of Registration Rights Agreement
      11.3(c)     -     Form of Bill of Sale - Silicon-28
      11.3(d)     -     Opinion of counsel to E-P
      B1.2        -     Capitalization
      B2.2        -     Consents of ISONICS
      B5          -     Lawsuits
      B6.1        -     Subsidiaries
      B6.3        -     Organization of Subsidiaries
      B6.4        -     Investments
      B8          -     Licenses and Permits
      B12         -     Environmental Matters
      B15         -     Tax Matters
      B21         -     Contracts
      C4          -     Consents of E-P




                                    -iii-


                               ASSET PURCHASE AGREEMENT


      This ASSET PURCHASE AGREEMENT (this "Agreement") is made as of this
30th day of November 1999 by and among EAGLE-PICHER TECHNOLOGIES, LLC, a
limited liability company formed under Delaware law ("E-P"), EAGLE-PICHER
INDUSTRIES, INC., an Ohio corporation ("EPI"), and ISONICS CORPORATION, a
California corporation ("ISONICS").

                                   R E C I T A L S

A.    ISONICS has been engaged in the business of selling depleted zinc directly
      or indirectly to commercial and governmental operators of nuclear power
      plants as described in more detail in ISONICS's annual report on Form
      10-KSB for the year ended April 30, 1999 (the "DZ Business") and owns
      certain assets (including inventory and certain contract rights)
      associated with the DZ Business (which assets are more specifically
      described on SCHEDULE A);

B.    ISONICS desires to sell, assign and convey all of the Zinc Assets to E-P
      and EPI, and E-P and EPI are willing to purchase the Zinc Assets and
      assume certain specified liabilities relating to the DZ Business, all as
      more fully described and upon the terms and conditions contained in this
      Agreement (collectively referred to as the "DZ Transaction"); and

C.    ISONICS desires to purchase 200 kilograms of Silicon-28 from E-P (the
      "Silicon Purchase"), and E-P is willing to enter into the Silicon Purchase
      in exchange for a warrant (the "Warrant") to purchase 4,000,000 shares of
      ISONICS common stock, all as more fully described and upon the terms and
      conditions contained in this Agreement (collectively referred to as the
      "Silicon Transaction").

      NOW, THEREFORE, in consideration of the mutual covenants and agreements
of the parties contained herein, and other good and valuable consideration,
the receipt and sufficiency of which is hereby acknowledged, the parties,
intending to be legally bound, agree as follows:


                                       I.
                                   DEFINITIONS

      1.1.  DEFINITIONS.  Capitalized terms in this Agreement shall have the
meanings specified in this Agreement or in Exhibit A.

                                      II.
                        PURCHASE AND SALE OF ZINC ASSETS

      2.1   ZINC ASSETS.  On the Closing Date and on the terms and subject to
the conditions set forth in this Agreement, ISONICS will sell, transfer,
assign and deliver to E-P and EPI, or either of them, as they may direct,
free and clear of any Encumbrance, other than the Assumed



Liabilities (as defined in Section 2.2), and E-P and EPI, or one of them, as
they may direct, will purchase, acquire and accept from ISONICS, all right,
title and interest in and to the Zinc Assets.  Except for the express
representations and warranties set forth in this Agreement, the sale of the
Zinc Assets will be "as is, where is" and without warranties of
merchantability or fitness for any particular purpose, and FOB ISONICS'
facility in Golden, Colorado; E-P and EPI will pay for the packaging and
delivery of the Zinc Assets to E-P's facility.

      2.2   ASSUMED LIABILITIES.  Upon the terms of and subject to the
conditions set forth in this Agreement, E-P shall assume at Closing and
accept only the liabilities and obligations of ISONICS listed on SCHEDULE 2.2
to this Agreement (the "Assumed Liabilities").  Neither  E-P nor EPI shall
assume any other liabilities of ISONICS.

      2.3   PURCHASE PRICE.

            2.3(a).  Subject to adjustment as contemplated by Section 2.4, the
      aggregate consideration to be received by ISONICS for the Zinc Assets (the
      "Purchase Price") consists of (i) cash equal to (A) $5,000,000 (the "Cash
      Portion"), PLUS (B) an estimate of Net Current Asset Value (as calculated
      pursuant to Section 2.4(a) at the Closing Date); (ii) the Additional
      Payments described in Section 2.3(b) and (iii) the assumption by E-P of
      the Assumed Liabilities.

            2.3(b).  Subject to the terms and conditions set forth herein, the
      Purchase Price shall be payable as follows:

                  (i)   At the Closing, E-P and EPI, jointly and severally,
            shall pay ISONICS cash equal to the Cash Portion and the estimated
            Net Current Asset Value by wire transfer of immediately available
            funds to such account or accounts as ISONICS shall specify in
            writing at least two Business Days prior to Closing.

                  (ii)  FIRST ADDITIONAL PAYMENT.

                        (A)   Not later than November 30, 2000, E-P and EPI,
                  jointly and severally, will pay ISONICS $500,000, unless there
                  is a Supplier Non-Performance during the period from the date
                  hereof to November 30, 2000.  AO Techsnabexport/
                  Electrochemical Plant is the "Supplier."  The term  "Supplier
                  Non-Performance" is defined to mean the Supplier's failure to
                  supply to E-P or EPI, as the case may be, the quantities of
                  zinc oxide powder required by the Supply Contract upon the
                  terms and conditions, including price, set forth in the Supply
                  Contract, unless the reason for the Supplier's failure is a
                  breach of the Supply Contract by E-P or EPI, as the case may
                  be.  The term "Supply Contract" means that certain contract
                  #08843672/70034-02D dated February 10, 1997, as amended,
                  between ISONICS and the Supplier for the supply of zinc oxide
                  powder in accordance with the terms of such contract (which
                  contract will be assigned to E-P or EPI, as the case may be,
                  at the Closing).

                                      -2-


                        (B)   If the Supplier partially performs under the
                  Supply Contract but such partial performance constitutes a
                  Supplier Non-Performance, the First Additional Payment will be
                  pro-rated, based on the amount of zinc oxide powder actually
                  provided by the Supplier upon the terms and conditions of the
                  Supply Contract divided by the amount of zinc oxide powder
                  required to be provided under the Supply Contract (the
                  "Additional Payment Pro-ration").

                        (C)   E-P or EPI, as the case may be, may only declare a
                  Supplier Non-Performance under this Section 2.3(b)(ii),
                  Section 2.3(b)(iii) or Section 2.3(b)(iv), or claim a partial
                  performance if E-P or EPI, as the case may be, gives ISONICS
                  prompt notice of and information with respect to the Supplier
                  Non-Performance and an opportunity for ISONICS to assist E-P
                  or EPI, as the case may be, in correcting or seeking to remedy
                  the Supplier Non-Performance.

            (iii)  SECOND ADDITIONAL PAYMENT.

                        (A)  Not later than November 30, 2001, E-P and EPI,
                  jointly and severally, will pay ISONICS an additional
                  $500,000, unless there is a Supplier Non-Performance for the
                  period from December 1, 2000 to November 30, 2001.

                        (B) If during the period for which the Second Additional
                  Payment is calculated, the Supplier partially performs under
                  the Supply Contract but such partial performance constitutes a
                  Supplier Non-Performance, E-P and EPI, jointly and severally,
                  will pay ISONICS an amount calculated pursuant to the
                  Additional Payment Pro-ration.

            (iv)  THIRD ADDITIONAL PAYMENT.

                        (A)  Not later than November 30, 2002, E-P and EPI,
                  jointly and severally, will pay ISONICS an additional
                  $500,000, unless there is a Supplier Non-Performance for the
                  period from December 1, 2001 to November 30, 2002.

                        (B) If during the period for which the Third Additional
                  Payment is calculated, the Supplier partially performs under
                  the Supply Contract but such partial performance constitutes a
                  Supplier Non-Performance, E-P and EPI, jointly and severally,
                  will pay ISONICS an amount calculated pursuant to the
                  Additional Payment Pro-ration.

      2.4   NET CURRENT ASSET VALUE AND CLOSING PURCHASE PRICE ADJUSTMENT.

                                      -3-


            2.4(a).  Not later than five Business Days prior to the Closing
      Date, ISONICS shall prepare and submit to E-P a closing statement
      estimating Net Current Asset Value for the DZ Business (the "Estimated
      Closing Statement"), and setting forth, in reasonable detail, ISONICS'
      estimation of the inventory less accounts payable of the DZ Business as of
      the Closing Date  (the "Estimated Net Current Asset Amount").   For
      purposes of calculating the Estimated Net Current Asset Amount and the
      Final Net Current Asset Amount (as defined below), (x) inventory
      ("Inventory") shall be valued as set forth in SCHEDULE 2.4(a) and (y)
      accounts payable shall consist only of current accounts payable incurred
      in the ordinary course of the DZ Business ("Accounts Payable").  The
      Estimated Closing Statement shall be accompanied by such supporting
      documentation as E-P may reasonably request.

                  (i)   If E-P disputes the correctness of the Estimated Net
            Current Asset Amount, E-P shall (not later than the second Business
            Day prior to the Closing Date) notify ISONICS of its objections and
            shall set forth, in writing and reasonable detail, the reasons for
            E-P's objections and the amount E-P estimates for the Estimated Net
            Current Asset Amount.  If E-P and ISONICS differ on the amount of
            the Estimated Net Current Asset Value and are unable to resolve
            their differences prior to the Closing Date, the amount to be
            included in the Purchase Price will be the Estimated Net Current
            Asset Value as estimated by ISONICS.

                  (ii)  If E-P fails to deliver a notice of objections within
            the timeframe set forth in Section 2.4(a)(i), E-P shall be deemed to
            have accepted ISONICS' calculation for the purpose of the payment of
            the Purchase Price as of the Closing Date.

            2.4(b).  Promptly following the Closing Date, but in no event later
      than 60 days after the Closing Date, E-P shall prepare and submit to
      ISONICS a closing statement of Net Current Assets for the DZ Business (the
      "Closing Statement"), setting forth, in reasonable detail, E-P's
      calculation of the actual Inventory and Accounts Payable of the DZ
      Business as of the Closing Date  (the "Final Net Current Asset Amount").
      The Closing Statement shall be accompanied by such supporting
      documentation as ISONICS may reasonably request.

                  (i)   If ISONICS disputes the correctness of the Final Net
            Current Asset Amount, ISONICS shall notify E-P of its objections
            within 20 days after the receipt of the Closing Statement and shall
            set forth, in writing and reasonable detail, the reasons for
            ISONICS' objections.  E-P and ISONICS shall endeavor in good faith
            to resolve any disputed items within 20 days after E-P's receipt of
            ISONICS' notice of objections.  If they are unable to do so, E-P and
            ISONICS shall select a nationally known independent accounting firm
            (the "Independent Accountants") to resolve the dispute, and the
            determination of such firm in respect of the correctness of each
            item remaining in dispute shall be conclusive and binding on ISONICS
            and E-P.  ISONICS and E-P shall cooperate with the Independent
            Accountants and shall provide the Independent Accountants with

                                      -4-


            such background materials and other information as the Independent
            Accountants shall request.  The fees and expenses, if any, of the
            Independent Accountants shall be paid one-half by ISONICS and
            one-half by E-P.

                  (ii)  If ISONICS fails to deliver a notice of objections
            within such time, ISONICS shall be deemed to have accepted E-P's
            calculation.

                  (iii) If the Final Closing Statement reflects a Net Current
            Asset Value higher than included in the Estimated Closing Statement,
            E-P and EPI, jointly and severally, will pay ISONICS the difference
            within seven Business Days; if the Final Closing Statement reflects
            a Net Current Asset Value lower than included in the Estimated
            Closing Statement, ISONICS will pay E-P or EPI, as they may direct,
            the difference within seven Business Days.  If there is any dispute
            as to the Final Closing Statement, final payment, if any, will be
            made within seven Business Days after the resolution of the dispute.

            2.4(c).  The Closing Statement and the Final Net Current Asset
      Amount shall be determined in accordance with GAAP, except that Inventory
      shall be valued as set forth in SCHEDULE 2.4(a).

      2.5   ALLOCATION OF PURCHASE PRICE.  E-P and ISONICS agree to allocate
the Purchase Price and the components of the Purchase Price consideration
among the Zinc Assets pursuant to the tax allocation schedule set forth on
SCHEDULE 2.5 attached hereto.  E-P and ISONICS shall not take any position on
their respective Tax Returns that is inconsistent with such allocation of the
Purchase Price and the components of the Purchase Price consideration
pursuant to SCHEDULE 2.5, and ISONICS and E-P shall prepare and timely file
such reports and information returns as may be required to report the
allocation of the Purchase Price pursuant to this Section 2.5.  Within 20
Business Days after the determination of the Final Net Current Asset Amount,
ISONICS and E-P shall adjust SCHEDULE 2.5 to be consistent with the amount
of, and the components of, the Final Net Current Asset Amount.

      2.6   ASSIGNMENT OF CONTRACTS AND RIGHTS.  Anything in this Agreement
to the contrary notwithstanding, this Agreement shall not constitute an
agreement to assign any Zinc Asset or any claim or right or any benefit
arising thereunder or resulting therefrom if an attempted assignment thereof,
without the consent of a third party thereto, would constitute a breach or
other contravention thereof or in any way would adversely affect the rights
of E-P or EPI thereunder.  ISONICS will use its best efforts to obtain the
consent of the other parties to any such Zinc Asset or any claim or right or
any benefit arising thereunder for the assignment thereof to E-P or EPI as
E-P or EPI may reasonably request.  If such consent is not obtained, or if an
attempted assignment thereof would be ineffective or would adversely affect
the rights of E-P or EPI or E-P or EPI would not in fact receive all such
rights, ISONICS and E-P or EPI will cooperate in a mutually agreeable
arrangement under which ISONICS would provide to E-P or EPI the benefits
thereunder in accordance with the intent of this Agreement, including
subcontracting, sub-licensing, or sub-leasing to E-P or EPI, or under which
ISONICS would enforce for the benefit of E-P or EPI any and all rights of
ISONICS against a third party thereto.

                                      -5-


From and after the Closing, ISONICS will pay to E-P or EPI within five (5)
Business Days of receipt all monies received by ISONICS in respect of any
Zinc Asset or any claim or right or any benefit arising thereunder. The
covenants of each of ISONICS and E-P or EPI set forth in this Section 2.6
shall survive the Closing until the assignment or novation of all Contracts
that constitute a portion of the Zinc Assets to E-P or EPI.  Nothing in this
Section 2.6 will limit the applicability of the condition set forth in
Section 9.4.

      2.7   AVAILABILITY OF PERSONNEL.  ISONICS will make the services of
Boris Rubizhevsky available as an independent consultant at times and place
reasonably requested by E-P (not to exceed 160 hours in any 12 month period)
to assist E-P in its dealings with the Supplier.  E-P shall pay directly or
reimburse ISONICS for expenses incurred by Mr. Rubizhevsky in the performance
of his duties requested by E-P, and compensate ISONICS for Mr. Rubizhevsky's
services at the rate of $107 per hour.

                                      III.
                              SILICON TRANSACTION

      3.1   SILICON PURCHASE.

            3.1(a).  On the terms and subject to the conditions set forth in
      this Agreement and for the consideration set forth in Section 3.2, E-P
      will sell, transfer, assign and deliver to ISONICS, free and clear of any
      Encumbrance, and ISONICS will purchase, acquire and accept from E-P, all
      right, title and interest in and to 200 kilograms of Silicon-28 meeting
      the specifications set forth on SCHEDULE 3.1(a), and subject to the
      delivery obligations set forth in SCHEDULE 3.1(a) (the "Silicon
      Purchase").  The Silicon-28 included in the Silicon Purchase will be
      packaged in a manner meeting the regulations of the U.S. Department of
      Transportation for transportation over interstate highways and made
      available for ISONICS FOB E-P's facility in Oklahoma.  E-P represents and
      warrants that it will use all commercially reasonable efforts to cause its
      pilot plant to meet the delivery commitments for the Silicon-28 set forth
      on SCHEDULE 3.1(a) (including without limitation if necessary and if
      available on commercially reasonable terms obtaining enrichment of its
      Silicon-28 production to meet such specifications), which representation
      and warranty will survive the Closing until the delivery commitments have
      been met.  E-P will keep ISONICS informed of its progress in producing the
      Silicon-28 and will consult and co-operate with ISONICS in seeking to
      perform its obligations under this Section 3.1(a).  Notwithstanding the
      foregoing, E-P shall not be liable for any failure to meet such delivery
      commitments if and to the extent that such failure results from any fire,
      flood, windstorm, strike or labor unrest, shortage of raw materials, act
      of God or other cause beyond the reasonable control of E-P.

            3.1(b).  CONSIDERATION.  On the Closing Date, and only after the
      completion of the DZ Transaction between the Parties, ISONICS will pay E-P
      in full for the Silicon Purchase (for which E-P will receive payment in
      full upon receipt of the Warrant) by issuing to E-P the Warrant in the
      form attached hereto as SCHEDULE 3.1(b).

                                      -6-


            3.1(c).  REMEDY.  Notwithstanding any other provision of this
      Agreement, ISONICS' sole remedy for any breach by E-P of its obligation
      under this ARTICLE III shall be as follows:  (i) If after using
      commercially reasonable efforts (including using third parties to enrich
      the Silicon-28 where reasonable), and after regular consultation with and
      advice from ISONICS, E-P's pilot plant is incapable of producing and
      beneficiating (or providing for the beneficiation of) Silicon-28, and if
      E-P gives written notice to such effect to ISONICS on or before March 31,
      2000, E-P may cancel its obligation to deliver Silicon-28 to ISONICS on or
      before December 31, 2000, in accordance with this Article III.  If E-P
      cancels its obligation under this Article III pursuant to this Clause
      3.1(c)(i), E-P must return the Warrant and the Registration Rights
      Agreement to ISONICS for cancellation.  In such case, E-P will be liable
      for no additional damages to ISONICS; and (ii) If E-P does not cancel its
      obligation under this Article III in accordance with Clause 3.1(c)(i), E-P
      must deliver the Silicon-28 to ISONICS in accordance with this Article III
      or be liable to ISONICS for damages in accordance with Section 12.2.


                                      IV.
                    REPRESENTATIONS AND WARRANTIES OF ISONICS

      4.1   REPRESENTATIONS AND WARRANTIES OF ISONICS.  ISONICS represents and
warrants to E-P as set forth on Exhibit B.


                                       V.
                    REPRESENTATIONS AND WARRANTIES OF E-P

      5.1   REPRESENTATIONS AND WARRANTIES OF E-P.  E-P represents and warrants
to ISONICS as set forth on Exhibit C.


                                      VI.
                      COVENANTS AND AGREEMENTS OF ISONICS

      6.1   CORPORATE AND OTHER ACTION. ISONICS shall take all action,
corporate or otherwise, which is necessary or reasonably appropriate to
complete the Contemplated Transactions, including the execution and delivery
of all documents and instruments that are necessary to effect the
Contemplated Transactions and obtaining all consents of third parties.

      6.2   ACCESS TO INFORMATION.  Except as prohibited or limited by law or
regulation, ISONICS shall, from and after the date of this Agreement and
until the Closing Date, give E-P and its employees, counsel, accountants and
other representatives full and complete access upon reasonable notice during
normal business hours, to all officers, employees, offices, properties,
Contracts, records and affairs of ISONICS and the DZ Business, and will
provide copies of such

                                      -7-


information concerning ISONICS and the DZ Business as E-P may reasonably
request.

      6.3   CONDUCT OF BUSINESS TO CLOSING.  Except with the prior written
consent of E-P or as otherwise provided in this Agreement, from the date of
this Agreement until the Closing Date, ISONICS shall conduct the DZ Business
in the ordinary course consistent with historical and customary operating
practices and shall use its reasonable commercial efforts to preserve the
Zinc Assets and the DZ Business, and maintain the relations and goodwill with
suppliers, landlords, creditors, agents, customers and others having business
relationships with ISONICS, and ISONICS shall not:

            6.3(a).  make any individual capital expenditure, or group of
      related capital expenditures, relating to the DZ Business in excess of
      $5,000;

            6.3(b).  sell or dispose of more than an aggregate of $5,000 of
      assets that would constitute Zinc Assets if owned, held or used by ISONICS
      on the Closing Date except sales of inventory by ISONICS in the ordinary
      course of its business;

            6.3(c).  sell, transfer, license or otherwise dispose of, any
      Intellectual Property that would constitute Zinc Assets if owned, held or
      used by ISONICS on the Closing Date;

            6.3(d).  terminate or materially reduce the coverage of any policies
      of title, liability, fire, workers' compensation, property and any other
      form of insurance covering the Zinc Assets or the operations of ISONICS or
      the DZ Business;

            6.3(e).  settle any material lawsuit, claim or other material
      dispute nor settle any other lawsuit, claim or other dispute if such
      settlement imposes a continuing non-monetary obligation on the DZ Business
      or any of the Zinc Assets or any material monetary obligation that will
      not be satisfied prior to the Closing;

            6.3(f).  except as contemplated by this Agreement, grant or
      implement any new or modified severance, termination or other employee
      benefit or compensation arrangement or increase or accelerate any benefits
      payable under the severance or termination pay policies or other employee
      benefit or compensation arrangements (including increasing the rate at
      which any Employee accrues vacation) with respect to any Employee;

            6.3(g).  except as otherwise may be permitted or required by this
      Agreement or Applicable Law, adopt or amend in any material respect any
      Employee Plan or Benefit Arrangement in respect of any Employee or
      increase the compensation or fringe benefits of any such Employee or pay
      any benefit not required by any Employee Plan or Benefit Arrangement with
      respect to such Employee as in effect on the date hereof;

            6.3(h).  fail to keep the equipment, machinery and systems used in
      the DZ Business in compliance, in all material respects, with all
      Applicable Laws and with all licenses and permits, and reasonably maintain
      all such assets and replace any thereof which shall be worn out, lost,
      stolen, or destroyed, in accordance with past practices

                                      -8-


      (other than assets that are no longer necessary for the operation of the
      DZ Business);

            6.3(i).  fail to maintain the files and records of the DZ Business
      in the usual, regular and ordinary manner, consistent with past practices
      or change its accounting systems;

            6.3(j).  fail to manage or cause to be managed the collection and
      payment of the accounts receivable and accounts payable of the DZ Business
      and otherwise maintain and manage its inventories and other current assets
      and current liabilities in the ordinary course of business and consistent
      with past practice, including making payment with respect to all of their
      respective accounts payable, current maturities of long term debt and
      other current payables in a timely manner and in accordance with the terms
      of such payable or such indebtedness, as the case may be, provided that no
      such indebtedness (other than intercompany indebtedness) shall be prepaid
      or otherwise retired in whole or in part prior to the date on which such
      indebtedness or portion thereof is due to be repaid, it being understood
      that the covenant set forth in this Section 6.3 shall not prohibit ISONICS
      from disputing any accounts payable in good faith, in the ordinary course
      of business and consistent with past practice;

            6.3(k).  fail to take commercially reasonable steps to protect all
      Intellectual Property and use commercially reasonable efforts to prevent
      any Intellectual Property from falling into the public domain;

            6.3(l).  enter into any agreement, contract, lease, license,
      commitment or instrument (or series of related agreements, contracts,
      leases, licenses, commitments or instruments) that would be required to be
      listed on SCHEDULE B21 or accelerate, terminate, modify or cancel in a
      manner adverse to the DZ Business any agreement, contract, lease, license,
      commitment or instrument (or series of related agreements, contracts,
      leases, licenses, commitments or instruments) that is required to be
      listed on SCHEDULE B21;

            6.3(m).  impose any Encumbrance upon any of the Zinc Assets;

            6.3(n).  enter into any consulting or other agreement which requires
      payment of commissions based on the performance of the DZ Business; or

            6.3(o).  commit to any of the foregoing.

      6.4   CONSENTS.  ISONICS shall use its best efforts to:

            6.4(a).  obtain all consents, waivers and authorizations and make
      all filings with and give all notices that may be necessary or reasonably
      required to complete the Contemplated Transactions, and

            6.4(b).  cause each of the conditions precedent to the obligations
      of E-P to be satisfied.

                                      -9-


      6.5   COVENANT NOT TO COMPETE.   ISONICS agrees that for a period
beginning on the Closing Date and ending on the fifth anniversary of the
Closing Date (the "Noncompete Period"), it will not directly or indirectly,
own, manage, operate, join, control or participate in the ownership,
management, operation or control of, any business whether in corporate,
limited liability company, proprietorship or partnership form or otherwise as
more than a five percent owner in such business if such business is
competitive with the DZ Business as of the Closing Date.  The parties hereto
specifically acknowledge and agree that the remedy at law for any breach of
the foregoing will be inadequate and that E-P, in addition to any other
relief available to it, shall be entitled to temporary and permanent
injunctive relief without the requirement of bond.  In the event that the
provisions of this Section 6.5 should ever be deemed to exceed the limitation
provided by applicable law, then the parties agree that such provisions shall
be reformed to set forth the maximum limitations permitted.

      6.6   CONFIDENTIALITY.  During the Noncompete Period, ISONICS will, and
will cause its Affiliates to, treat and hold as confidential any confidential
information relating to the operations or affairs of E-P or the DZ Business.
If ISONICS or any of its Affiliates is requested or required (by oral or
written request for information or documents in any legal proceeding,
interrogatory, subpoena, civil investigative demand or similar process or by
Applicable Law) to disclose any such confidential information then ISONICS
shall notify E-P promptly of the request or requirement so that E-P, at its
expense, may seek an appropriate protective order or waive compliance with
this Section.  If, in the absence of a protective order or receipt of a
waiver hereunder, ISONICS or any of its Affiliates is, on the advice of
counsel, compelled to disclose such confidential information, ISONICS or any
of its Affiliates, as the case may be, may so disclose the confidential
information, provided that ISONICS or any of its Affiliates, as the case may
be, shall use reasonable commercial efforts to obtain reliable assurance that
confidential treatment will be accorded to such confidential information.  No
obligation of confidentiality shall apply to any confidential information of
E-P that ISONICS (i) can reasonably demonstrate in writing was already known
or in ISONICS' possession, (ii) can reasonably demonstrate in writing was
developed independently by ISONICS or (iii) ISONICS rightfully receives from
a third party without knowledge of a violation of any obligation of
confidentiality, provided, however, that if ISONICS later learns that any
such information was received in violation of any obligation of
confidentiality, from that point ISONICS shall treat such information
pursuant to the terms of this Agreement.  In addition, no obligation of
confidentiality shall apply to any information that is known to, or becomes
generally available to, the public without breach of this Agreement.

      6.7   ACCESS TO INFORMATION; COOPERATION AFTER CLOSING.  On and after
the Closing Date, ISONICS shall, at E-P's expense, (i) afford E-P reasonable
access upon reasonable prior notice during normal business hours to all
employees, offices, properties, contracts, records, books and affairs of
ISONICS to the extent relating to the conduct of the DZ Business prior to the
Closing, and (ii) cooperate fully with E-P with respect to matters relating
to the conduct of the DZ Business prior to the Closing, including, without
limitation, in the defense or pursuit of any Zinc Asset or Assumed Liability
or any claim or action that relates to occurrences involving the DZ Business
prior to the Closing Date.

                                      -10-


                                       VII.
                         COVENANTS AND AGREEMENTS OF E-P

      7.1   CORPORATE AND OTHER ACTION.  E-P shall take all action, corporate
or otherwise, which is necessary or reasonably appropriate to complete the
Contemplated Transactions, including the execution and delivery of all
documents and instruments that are necessary to effect the Contemplated
Transactions.

      7.2   ASSUMED LIABILITIES.  E-P shall pay and discharge the Assumed
Liabilities in accordance with its normal business practices.

      7.3   CONFIDENTIALITY.  For a period of five years from and after the
Closing Date, E-P will, and will cause its Affiliates to, treat and hold as
confidential, any confidential information relating to the operations or
affairs of ISONICS other than the DZ Business or the Zinc Assets.  In the
event that E-P, or any of its Affiliates, is requested or required (by oral
or written request for information or documents in any legal proceeding,
interrogatory, subpoena, civil investigative demand or similar process or by
Applicable Law) to disclose any such confidential information then E-P shall
notify ISONICS promptly of the request or requirement so that ISONICS, at its
expense, may seek an appropriate protective order or waive compliance with
this Section.  If, in the absence of a protective order or receipt of a
waiver hereunder, E-P, or any of its Affiliates, is, on the advice of
counsel, compelled to disclose such confidential information, E-P, or its
Affiliates, as the case may be, may so disclose the confidential information,
provided that E-P, or its Affiliates, as the case may be, shall use
reasonable commercial efforts to obtain reliable assurance that confidential
treatment will be accorded to such confidential information.  No obligation
of confidentiality shall apply to any confidential information of ISONICS
that E-P (i) can reasonably demonstrate in writing was already known or in
E-P's possession, (ii) can reasonably demonstrate in writing was developed
independently by E-P or (iii) E-P rightfully receives from a third party
without knowledge of a violation of any obligation of confidentiality,
provided, however, that if E-P later learns that any such information was
received in violation of any obligation of confidentiality, from that point
E-P shall treat such information pursuant to the terms of this Agreement.  In
addition, no obligation of confidentiality shall apply to any information
that is known to, or becomes generally available to, the public without
breach of this Agreement.

      7.4   NONSOLICITATION.  In the event that the Closing does not occur
for any reason, for a period of one year after the termination of this
Agreement, without the prior consent of ISONICS, E-P will not solicit the
employment of any person who is employed by ISONICS; provided, that the
foregoing shall not apply to responses to or follow-up hiring in respect of
general solicitations or advertisements for job positions not specifically or
generally directed to any employee of ISONICS.

      7.5   AGREEMENT CONCERNING ACQUISITION AND VOTING OF ISONICS COMMON
STOCK OR DERIVATIVE SECURITIES.  E-P, on behalf of itself and its Affiliates,
agrees that it (including its

                                      -11-


Affiliates) will not acquire a beneficial interest in shares of common stock
of ISONICS in public transactions or private transactions except pursuant to
the exercise of the Warrant.  In addition, to the extent E-P or any Affiliate
owns, or acquires any ISONICS common stock (whether through the exercise of
the Warrant or otherwise, whether or not in violation of this Agreement):

            7.5(a).  E-P will vote any and all Company Voting Securities owned
      of record by E-P, and shall cause any and all Company Voting Securities
      owned beneficially by E-P, to be voted with respect to the election or
      removal of directors of ISONICS in accordance with the recommendations of
      a majority of the Board of Directors of ISONICS;

            7.5(b).  E-P will not form, join, or in any other way participate in
      a partnership, pooling agreement, syndicate, voting trust, or other
      "group" with respect to Company Voting Securities or enter into any
      agreement or arrangement or otherwise act in concert with any other person
      for the purpose of acquiring, holding, voting, or disposing of Company
      Voting Securities.

            7.5(c).  E-P shall be present, in person or by proxy, at all
      meetings of stockholders of ISONICS so that any and all Company Voting
      Securities owned of record or beneficially owned by E-P may be counted for
      the purpose of determining the presence of a quorum at such meetings. E-P
      shall not directly or indirectly take any action, along or in concert with
      any other person to circumvent the limitations of this Agreement.

            7.5(d).  E-P will use its best efforts to cause its Affiliates to
      act in accordance with the requirements of Paragraphs (a), (b), and (c) of
      this Section 7.5 as though they were each a party to this Agreement and
      bound by such provisions.

These covenants shall survive the Closing or termination of this Agreement
for a period of two years.

      7.6   AGREEMENT NOT TO CAUSE A RULE 13e-3 TRANSACTION.  E-P agrees that
it will not take, directly or indirectly (and it will not cause or permit any
Affiliate to take, directly or indirectly) actions to cause ISONICS to
accomplish a going-private transaction or other transaction of the type
described in Rule 13e-3 under the Securities Exchange Act of 1934, as
amended. This covenant shall survive the Closing or termination of this
Agreement for a period of two years.

      7.7   COMPLIANCE WITH SEC REPORTING REQUIREMENTS.  E-P acknowledges
that the acquisition of the Warrant will result in it becoming the beneficial
holder of more than 10% of the outstanding common stock of ISONICS.  E-P
further acknowledges its understanding that the common stock of ISONICS is
registered under the Securities Exchange Act of 1934, as amended.  E-P hereby
covenants and agrees that it will comply with the reporting requirements of
Section 13(d) and Section 16(a) of the Securities Exchange Act of 1934 (and
the rules thereunder) to the extent such requirements are applicable to E-P
and its Affiliates.

                                      -12-


                                      VIII.
                            SURVIVAL; INDEMNIFICATION

      8.1   SURVIVAL OF REPRESENTATIONS, WARRANTIES AND COVENANTS.  The
representations and warranties made in this Agreement by ISONICS and E-P,
respectively, shall survive the Closing until the second anniversary of
Closing (or, if applicable, for the period set forth in the particular
representation or warranty), provided that the representations and warranties
set forth in B2, B14 and C2 shall survive for the applicable statute of
limitations.

      8.2   INDEMNIFICATION.

            8.2(a).  E-P shall defend, hold harmless and indemnify ISONICS and
      its Affiliates (each a "Seller Indemnified Party") from and against any
      and all Damages to which a Seller Indemnified Party may become subject
      insofar as the Damages (or actions in respect thereof) arise out of or are
      based upon (i) any failure by E-P to perform its obligations under this
      Agreement; (ii) the failure of E-P to satisfy the Assumed Liabilities; or
      (iii) any breach by E-P of its representations, warranties, covenants and
      agreements set forth in this Agreement (provided that a notice
      contemplated by Section 8.3 of a claim for indemnification is provided to
      the Indemnitor (as defined in Section 8.3) on or prior to the time of the
      expiration of the applicable representation or warranty).

            8.2(b).  ISONICS shall defend, hold harmless and indemnify E-P and
      its Affiliates (each, a "Buyer Indemnified Party") from and against any
      and all Damages, to which a Buyer Indemnified Party may become subject,
      insofar as the Damages (or actions in respect thereof) arise out of or are
      based upon (i) any failure by ISONICS to perform its obligations under
      this Agreement; (ii) any breach by ISONICS of any of the representations,
      warranties, covenants and agreements set forth in this Agreement (provided
      that a notice contemplated by Section 8.3 of a claim for indemnification
      is provided to the Indemnitor on or prior to the time of the expiration of
      the applicable representation or warranty), (iii) any liability of ISONICS
      other than the Assumed Liabilities or (iv) any liability of ISONICS under
      Environmental Laws incurred prior to the Closing Date.

      8.3   PROCEDURES.

            8.3(a).  Promptly after receipt by a party eligible for
      indemnification under this ARTICLE VIII (an "Indemnified Party") of notice
      of the commencement of any action, arbitration proceeding, governmental
      investigation or any other claim (a "Third Party Claim"), the Indemnified
      Party shall, if a claim in respect thereof is to be made against a party
      liable for indemnification under this ARTICLE VIII (an "Indemnitor"),
      notify the Indemnitor of the commencement thereof; PROVIDED, HOWEVER, that
      the failure of the Indemnified Party to notify the Indemnitor shall not
      relieve the Indemnitor from any liability under this ARTICLE VIII, except
      to the extent and only to the extent it is proved that the Indemnitor
      suffered actual prejudice from the failure to notify in connection with or
      in defending against such Third Party Claim.

                                      -13-


            8.3(b).  If any action is brought against an Indemnified Party and
      the Indemnified Party notifies the Indemnitor of the commencement thereof,
      the Indemnitor shall be entitled to participate in and, to the extent that
      the Indemnitor may wish, to assume the defense of the action, with counsel
      reasonably satisfactory to the Indemnified Party (who shall not, except
      with the consent of the Indemnified Party, be counsel to the Indemnitor),
      and after notice from the Indemnitor to the Indemnified Party of its
      election to assume the defense, the Indemnitor shall not be liable to the
      Indemnified Party under this ARTICLE VIII for any legal fees or legal
      expenses subsequently incurred by the Indemnified Party in connection with
      the defense thereof other than reasonable costs of investigation.
      Notwithstanding anything in this Section 8.3 to the contrary, if the
      Indemnitor does not assume the defense and control of any such Third Party
      Claim as provided in this Section 8.3, the Indemnified Party shall have
      the right to defend such Third Party Claim in such manner as it may deem
      appropriate.

            8.3(c).  The Indemnitor shall be authorized to consent to a
      settlement of, or the entry of any judgment arising from, any Third Party
      Claim, and the Indemnified Party shall consent to such settlement of, or
      the entry of any such judgment arising from, such Third Party Claim;
      provided, however, that the Indemnitor shall:

                  (i)   pay or cause to be paid all amounts arising out of such
            settlement or judgment concurrently with the effectiveness thereof;

                  (ii)  not encumber any of the assets of the Indemnified Party
            or agree to any restriction or condition that would apply to the
            Indemnified Party or to the conduct of the Indemnified Party"s
            business; and

                  (iii) obtain, as a condition of any settlement or other
            resolution, a complete release of each Indemnified Party.

            8.3(d).  Except to the extent of the foregoing, no settlement or
      entry of judgment in respect of any Third Party Claim shall be consented
      to by any Indemnitor or Indemnified Party without the express written
      consent of the other party.  If the Indemnified Party fails to give its
      consent to a proposed compromise or settlement of a claim that would
      otherwise be permitted pursuant to this Section 8.3, the Indemnitor shall
      have no obligation whatsoever to the Indemnified Party with respect to
      Damages related to such claim in an amount in excess of the proposed
      compromise or settlement.

            8.3(e).  The parties agree to cooperate fully with each other in
      connection with the defense, negotiation or settlement of any prospective
      claim and to provide each other with all materials, information and data
      that is reasonably requested by the other in connection with a prospective
      claim.

      8.4   LIMITATIONS.  Notwithstanding the foregoing, an Indemnitor shall
have no liability under this ARTICLE VIII for any breach of representation or
warranty unless and until the

                                      -14-


aggregate amount of Damages directly or indirectly suffered or incurred by an
Indemnified Party equals or exceeds One Hundred Thousand Dollars ($100,000)
(the "Threshold Amount").  At such time as the aggregate Damages directly or
indirectly suffered or incurred by an Indemnified Party equals or exceeds the
Threshold Amount, the Indemnified Party shall be indemnified to the extent
such Damages exceed the Threshold Amount. Furthermore, an Indemnitor shall
have no liability under this ARTICLE VIII for any indirect or consequential
damages.

                                      IX.
                   CONDITIONS OF E-P'S AND EPI'S OBLIGATIONS

      The obligations of E-P and EPI to complete the Contemplated
Transactions which are to be completed on the Closing Date and to perform the
other covenants and agreements in accordance with the terms and conditions of
this Agreement are subject to satisfaction of each of the following
conditions which, if not satisfied, may be waived, but only in a writing
executed by E-P, it being understood and agreed that any such waiver by E-P
shall not be deemed to constitute a waiver of a claim for Damages in respect
of any matter for which indemnification is provided under ARTICLE VIII.

      9.1   REPRESENTATIONS AND WARRANTIES TRUE.  Except for representations
and warranties that by their terms speak only as of a specified date, each of
the representations and warranties of ISONICS contained in this Agreement
shall have been true and complete when made and shall be true and complete in
all material respects on and as of the Closing Date as if made on and as of
the Closing Date, and E-P shall have received a certificate to that effect
from the President of ISONICS.

      9.2   COVENANTS AND AGREEMENTS--NO DEFAULT.  ISONICS shall not be in
default in respect of any material obligation under this Agreement and shall
have performed or complied in all respects with all covenants and agreements
required by this Agreement to be performed or complied with by ISONICS prior
to or as of the Closing Date, and E-P shall have received a certificate to
that effect from the President of ISONICS.

      9.3   NO MATERIAL ADVERSE CHANGE.  Since July 31, 1999, ISONICS shall
not have suffered a Material Adverse Effect on its business (including the DZ
Business) or financial condition, and E-P shall have received a certificate
to such effect from the President of ISONICS.  E-P acknowledges that the
continuing losses reported by ISONICS in the ISONICS 1934 Act Reports do not
constitute a Material Adverse Effect.  E-P also acknowledges that the pro
forma and actual impact on ISONICS and its financial statements as a result
of the sale of the DZ Business to E-P will result in increased operating
losses and other impacts, none of which individually or in the aggregate will
constitute a Material Adverse Effect on ISONICS.

      9.4   CONSENTS.  E-P shall have received all third-party and
governmental consents, novations, waivers, authorizations and approvals
identified on SCHEDULE B2.2 OR C4 and shall have made all filings and given
all notices required in connection with the Contemplated Transactions that
are referenced in Section 7.1 or are set forth on SCHEDULE B2.2 OR C4.

                                     -15-


      9.5   CLOSING DOCUMENTS.  ISONICS shall have provided E-P with duly
executed copies of all of the documents required by Section 11.2 to be
delivered at Closing by ISONICS.

      9.6   ADVERSE PROCEEDINGS.  No action, proceeding or governmental
investigation shall have been instituted or threatened against the completion
of the Contemplated Transactions.

                                       X.
                      CONDITIONS OF OBLIGATIONS OF ISONICS

      The obligations of ISONICS to complete the Contemplated Transactions
which are to be completed on the Closing Date and to perform the other
covenants and agreements in accordance with the terms and conditions of this
Agreement are subject to satisfaction of each of the following conditions
which, if not satisfied, may be waived, but only in a writing executed by
ISONICS, it being understood and agreed that any such waiver by ISONICS shall
not be deemed to constitute a waiver of a claim for Damages in respect of any
matter for which indemnification is provided under ARTICLE VIII.

      10.1  REPRESENTATIONS AND WARRANTIES TRUE.  Except as otherwise
permitted or contemplated by this Agreement and except for representations
and warranties that by their terms speak only as of a specified date, each of
the representations and warranties of E-P contained herein shall have been
true and complete when made and shall be true and complete in all material
respects on and as of the Closing Date as if made on and as of the Closing
Date and ISONICS shall have received a certificate to such effect from an
authorized officer of E-P.

      10.2  COVENANTS AND AGREEMENTS; NO DEFAULT.  Neither E-P nor EPI shall
be in default in respect of any material obligation under this Agreement and
E-P or EPI shall have performed or complied in all respects with all material
covenants and agreements required by this Agreement to be performed or
complied with by E-P or EPI, as the case may be, prior to or as of the
Closing Date, and ISONICS shall have received a certificate to such effect
from an authorized officer of E-P.

      10.3  CONSENTS.  ISONICS shall have obtained all of the third-party and
governmental consents, novations, waivers, authorizations and approvals
identified on SCHEDULE B2.2 and shall have made all material filings and
given all notices required in connection with the Contemplated Transactions
that are referenced in Section 6.1 or are set forth in SCHEDULE B2.2.

      10.4  CLOSING DOCUMENTS.  E-P shall have provided ISONICS with duly
executed copies of all of the documents required by Section 11.3 to be
delivered at Closing by E-P.

      10.5  ADVERSE PROCEEDINGS.  No action, proceeding or governmental
investigation shall have been instituted or threatened against the completion
of the Contemplated Transactions.

                                    -16-


                                     XI.
                                   CLOSING

      11.1  TIME AND PLACE OF CLOSING.

            11.1(a).  The closing of the Contemplated Transactions (the
      "Closing") shall take place at 11:00 a.m. (local time) on November 30,
      1999, or at such other time and date as may be mutually agreed upon in
      writing, upon fulfillment of (a) all the conditions set forth in
      ARTICLE IX, which have not been waived in writing by E-P, and (b) all the
      conditions set forth in ARTICLE X, which have not been waived by ISONICS.
      If such conditions have not been fulfilled or waived by November 30, 1999,
      the Closing shall take place within five Business Days after fulfillment
      or waiver of all such conditions but in no event later than December 31,
      1999, unless otherwise mutually agreed in writing by E-P and ISONICS.  The
      Closing shall be deemed to be effective as of the close of business on the
      Closing Date.

            11.1(b).  All proceedings to be taken and all documents to be
      executed and delivered by ISONICS in connection with the completion of the
      Contemplated Transactions shall be reasonably satisfactory in form and
      substance to E-P and its counsel.  All proceedings to be taken and all
      documents to be executed and delivered by E-P in connection with the
      completion of the Contemplated Transactions shall be reasonably
      satisfactory in form and substance to ISONICS and its counsel.  All
      proceedings to be taken and all documents to be executed and delivered at
      the Closing shall be deemed to have been taken and executed
      simultaneously, and no proceedings shall be deemed taken nor any documents
      executed or delivered until all have been taken, executed or delivered.

      11.2  PERFORMANCE BY ISONICS.  At the Closing, ISONICS shall deliver or
cause to be delivered to E-P or EPI, as they may direct, the following:

            11.2(a).  A bill of sale for the Zinc Assets in the form set forth
      on SCHEDULE 11.2(a) (the "Bill of Sale").

            11.2(b).  An assignment and assumption agreement executed in
      counterpart by ISONICS in the form set forth on SCHEDULE 11.2(B) (the
      "Assignment and Assumption Agreement"), together with all required
      consents to assignments in respect of Zinc Assets and the issuance of the
      Warrant (the "Consents").

            11.2(c).  An opinion of counsel to ISONICS substantially in the form
      set forth on SCHEDULE 11.2(c).

            11.2(d).  The Warrant.

            11.2(e).  A release of the lien of Coast Business Credit and any
      other Encumbrances on the Zinc Assets.

                                     -17-


            11.2(f).  Intentionally omitted.

            11.2(g).  A registration rights agreement (the "Registration Rights
      Agreement") in the form set forth on SCHEDULE 11.2(g) executed by ISONICS.

            11.2(h).  Such other documents, articles of transfer, instruments or
      agreements as may be reasonably requested by E-P to effectuate the
      Contemplated Transactions.

      11.3. PERFORMANCE BY E-P.  At or prior to the Closing, E-P and EPI,
jointly and severally, shall deliver, or cause to be delivered, to ISONICS the
following:

            11.3(a).  A wire transfer of funds to ISONICS in the aggregate
      amount equal to the Cash Portion and the Estimated Net Current Asset
      Amount.

            11.3(b).  The Assignment and Assumption Agreement executed in
      counterpart by E-P.

            11.3(c).  A bill of sale and undertaking by E-P to supply the
      Silicon Purchase meeting the specifications and pursuant to the delivery
      schedule set forth in SCHEDULE 11.3(c).

            11.3(d).  An opinion of counsel to E-P and EPI substantially in the
      form set forth on SCHEDULE 11.3(d).

            11.3(e).  Such other documents, articles of transfer, instruments or
      agreements as may be reasonably requested by ISONICS to effectuate the
      Contemplated Transactions.

                                      XII.
                                  TERMINATION

      12.1  TERMINATION.  This Agreement may be terminated at any time prior to
the Closing only as follows:

            12.1(a).  by mutual written agreement of E-P and ISONICS;

            12.1(b).  by either E-P or ISONICS if there shall be any law or
      regulation that makes completion of the Contemplated Transactions illegal
      or otherwise prohibited or if completion of the Contemplated Transactions
      would violate any nonappealable final order, decree or judgment of any
      court or Governmental Authority having competent jurisdiction;

            12.1(c).  by either E-P or ISONICS if the Closing shall not have
      been completed by December 31, 1999; provided, however, that neither E-P
      nor ISONICS may terminate

                                     -18-


      this Agreement pursuant to this Section 12.1(c) if the Closing shall not
      have been completed by December 31, 1999, by reason of the failure of
      such party or any of its Affiliates to perform in any material respects
      any of its or their respective covenants or agreements contained in this
      Agreement.

Any party desiring to terminate this Agreement pursuant to this Section 12.1
shall give written notice of such termination to the other parties to this
Agreement.

      12.2  EFFECT OF TERMINATION.  If this Agreement is terminated as permitted
by Section 12.1, such termination shall be without liability of any party (or
any Affiliate, shareholder, director, officer, employee, agent, consultant or
representative of such party) to any other party to this Agreement; provided,
however, that if the Contemplated Transactions fail to close as a result of a
breach by ISONICS on the one hand, or E-P on the other hand, such breaching
party shall be fully liable for any and all actual damages incurred or suffered
by the other party as a result of all such breaches.   Notwithstanding the
foregoing, the provisions of Sections 6.6, 7.3, 7.4, 7.5 and this Section 12.2
shall survive any termination hereof pursuant to Section 12.1.

                                     XIII.
                           MISCELLANEOUS PROVISIONS

      13.1  EXPENSES.  Except as otherwise provided herein, ISONICS on the
one hand, and E-P and EPI on the other hand, shall bear and pay for their own
legal, accounting and other costs and fees incurred in connection with the
Contemplated Transactions.  All sales, use and other transfer Taxes resulting
from or relating to the transfer of any of the Zinc Assets and the Silicon-28
shall be split equally between E-P and ISONICS.

      13.2  FURTHER ASSURANCES.  Each party shall execute and deliver such
additional documents or take such additional actions as may be requested by
another party to this Agreement if such requested document or action is
reasonably necessary to effect the Contemplated Transactions.

      13.3  NOTICES.  Any notice, request, instruction or other document or
communication required or permitted to be given under this Agreement shall be
in writing and shall be deemed given upon delivery in person; upon being
deposited in the mail, postage prepaid, for mailing by certified or
registered mail; or upon being transmitted by facsimile, as follows:

            If to E-P or EPI, delivered or mailed to:

                  Boron Department
                  Eagle-Picher Technologies LLC
                  798 Highway 69A
                  Quapaw, OK  74363
                  Attention:  Vice President and General Manager
                  Facsimile:  918-673-1052

                                     -19-


                  Telephone:  918-673-2201

            with copies delivered or sent by facsimile to:

                  Taft, Stettinius & Hollister LLP
                  1800 Firstar Tower
                  425 Walnut Street
                  Cincinnati, OH  45202-3957
                  Attention:  Gerald S. Greenberg, Esq.
                  Facsimile: (513) 381-0205
                  Telephone:  (513) 381-2838

                        and

                  Eagle-Picher Industries Inc.
                  250 East Fifth Street, Suite 500
                  Cincinnati, Ohio 45202
                  Attention:  Vice President and General Counsel
                  Facsimile:  (513) 629-2572
                  Telephone:  (513) 629-2417

            If to ISONICS, delivered or mailed to:

                  Isonics Corporation
                  5906 McIntyre Street
                  Golden, CO 80403
                  Attention:  James E. Alexander, President
                  Facsimile   303-279-7300
                  Telephone:  303-279-7900

            with a copy (which does not constitute notice) delivered or sent by
facsimile to:

                  Herrick K. Lidstone, Jr.
                  Norton A. Lidstone, P.C.
                  The Quadrant
                  5445 DTC Parkway
                  Suite 850
                  Englewood, Colorado  80111
                  Facsimile:  303-221-5553
                  Telephone:  303-221-5552

or to such other address or addresses as may be specified in writing from
time to time by any party to the other parties.

                                     -20-


      13.4  REFERENCES AND CONSTRUCTION.

            13.4(a).  References in this Agreement to Sections or Schedules are
      to sections of or schedules to this Agreement unless otherwise indicated
      and references to clauses are to clauses of the Section in which the
      reference appears unless specifically noted otherwise.

            13.4(b).  When used in this Agreement, the word "including" shall
      have its normal common meaning and any list of items that may follow such
      word shall not be deemed to represent a complete list of the content of
      the referent of the subject.

            13.4(c).  Unless the context otherwise requires, the singular shall
      include the plural and vice versa, references to any gender shall include
      all other genders and references to persons shall include individuals,
      bodies corporate, unincorporated associations, partnerships and other
      entities in each case whether or not having a separate legal personality.

            13.4(d).  The parties have participated jointly in the negotiation
      and drafting of this Agreement.  If any ambiguity or question of intent
      arises, no presumption or burden of proof shall arise favoring or
      disfavoring any party by virtue of the authorship of any of the provisions
      of this Agreement.

            13.4(e).  Section headings are for convenience only and shall not
      limit or otherwise affect any of the provisions of this Agreement.

            13.4(g).  Except as set forth in the following sentence, this
      Agreement is not intended to and shall not be construed so as to create
      any rights in any third party beneficiary.  The Affiliates of E-P are
      intended to be express third-party beneficiaries of the terms contained in
      this Agreement.

      13.5  ENTIRE AGREEMENT.  This Agreement, the Schedules and Exhibits to
this Agreement and any other agreements contemplated by this Agreement
(including the Confidentiality Agreement) constitute the entire agreement and
understanding of the parties hereto with respect to the matters herein set
forth, and all prior negotiations, writings and understandings relating to
the subject matter of this Agreement are merged herein and are superseded and
canceled by this Agreement.

      13.6  NO PUBLIC ANNOUNCEMENT.  No party shall make any press release or
other public announcement regarding this Agreement or the Contemplated
Transactions, without prior consultation with and consent of the other party,
which consent may not unreasonably be withheld.

      13.7  COUNTERPARTS; EFFECTIVENESS.  This Agreement may be executed in
one or more counterparts, each of which shall be deemed to be an original
copy of this Agreement and all of which, when taken together, shall be deemed
to constitute one in the same agreement.  This

                                     -21-


Agreement shall become effective when each party hereto shall have received a
counterpart hereof signed by the other parties hereto.

      13.8  SEVERABILITY OF PROVISIONS.  If a court in any proceeding holds
any provisions of this Agreement or its application to any person or
circumstance invalid, illegal or unenforceable, the remainder of this
Agreement, or the application of such provisions to Persons or circumstances
other than those to which it was held to be invalid, illegal or enforceable,
shall be not affected, and shall be valid, legal and enforceable to the
fullest extent permitted by law, but only if and to the extent such
enforcement would not materially and adversely frustrate the parties'
essential objectives as expressed in this Agreement.  Furthermore, in lieu of
any such invalid or unenforceable term or provision, the parties intend that
the court add to this Agreement a provision as similar in terms to such
invalid or unenforceable provision as may be valid and enforceable, so as to
effect the original intent of the parties to the greatest extent possible.

      13.9  EXHIBITS AND SCHEDULES.  All Exhibits and Schedules to this
Agreement shall constitute part of this Agreement and shall be deemed to be
incorporated in this Agreement by reference and made a part of this Agreement
as if set out in full at the point where first mentioned.

      13.10 WAIVERS AND AMENDMENTS.  Any of the terms or conditions of this
Agreement may be waived but only in writing by the party which is entitled to
the benefit thereof, and this Agreement may be amended or modified in whole
or in part only by an agreement in writing, executed by all the parties to
this Agreement.

      13.11 SUCCESSORS AND ASSIGNS.  The provisions of this Agreement shall
be binding upon and inure to the benefit of the parties and their respective
successors and assigns; provided that no party may assign, delegate or
otherwise transfer any of its rights or obligations under this Agreement
without the consent, which consent shall not be unreasonably withheld, of E-P
in the case of ISONICS, and ISONICS in the case of E-P.

      13.12 GOVERNING LAW.  This Agreement shall be construed and enforced in
accordance with and governed by the laws of the State of Delaware (without
regard to the choice of law provisions thereof).

      13.13 DISPUTE RESOLUTION.

            13.13(a) .  SENIOR OFFICERS TO RESOLVE.  All claims, disputes or
      other controversies arising out of, or relating to, this Agreement or the
      Contemplated Transactions (hereinafter collectively referred to as a
      "Dispute") shall initially be submitted to a senior officer from each
      party for resolution by mutual agreement between said officers.  Any
      mutual determination by the senior officers shall be final and binding
      upon the parties.  However, should such senior officers fail to arrive at
      a mutual decision as to the Dispute within 20 days after notice to both
      parties of the Dispute, the parties shall then attempt to resolve such
      Dispute by mediation in accordance with the terms and provisions set forth
      in the following paragraph.

                                     -22-


            13.13(b) .  MEDIATION.  Notice of the demand for mediation for any
      Dispute which has not been resolved in accordance with the previous
      paragraph shall be filed with the other party to this Agreement, and shall
      be made within a reasonable time after such party is permitted to mediate
      the Dispute as provided herein.  All mediation proceedings shall take
      place in Dallas, Texas and shall be conducted in accordance with rules
      mutually determined by the parties.  The mediator shall be an individual
      mutually selected by ISONICS and E-P, which individual shall (i) have at
      least 10 years experience in the discipline which is the subject of the
      Dispute, or (ii) be an attorney of at least 10 years of experience in the
      realm of business transactions or commercial litigation.  Any mutual
      decision by the parties pursuant to any such mediation shall be final and
      binding upon the parties.  However, should the parties fail to arrive at a
      mutual decision as to the Dispute within 30 days after commencement of the
      mediation proceedings, the parties shall then be entitled to refer such
      Dispute to arbitration as provided in the following paragraph.

            13.13(c) .  ADDITIONAL PROCEEDINGS.  To the extent that any Dispute
      continues to exist after the mediation provided for in the preceding
      paragraph, the parties agree to resolve the Dispute by binding
      arbitration, unless the remedy sought is injunctive relief.  Respecting
      any Disputes which ultimately become the subject of court proceedings
      wherein the remedy sought is injunctive relief, the parties irrevocably
      agree that (i) the venue and jurisdiction for such proceedings shall be in
      any court of competent jurisdiction, and (ii) trial by jury is waived by
      both parties.  Arbitration of disputes shall be conducted in Dallas, Texas
      and shall apply the substantive law governing this Agreement.  The
      arbitration proceedings will be conducted by a panel of three arbitrators
      in accordance with the Rules of Commercial Arbitration of the American
      Arbitration Association ("AAA") and under the professional administration
      of the AAA, except that the parties shall have the rights of discovery as
      to one another such as are provided by Federal Rules of Civil Procedure 26
      through 37 in effect at the time of the arbitration and rights of
      discovery as to third parties in effect at the time of the arbitration as
      are provided by law.  The arbitration award shall be binding upon the
      parties.













                                     -23-


      IN WITNESS WHEREOF, the parties hereto caused this Agreement to be duly
executed on the day and year first above written.

                                    EAGLE-PICHER TECHNOLOGIES, LLC


                                    By:
                                       --------------------------------------
                                        Name: Dallas Mayfield
                                        Title:


                                    ISONICS CORPORATION


                                    By:
                                       --------------------------------------
                                        James E. Alexander, President


                                    EAGLE-PICHER INDUSTRIES, INC.


                                    By:
                                       --------------------------------------
                                        Name:
                                        Title:











                                     -24-


                                      EXHIBIT A
                                     DEFINITIONS

I.    Terms defined in the Agreement shall have the meaning ascribed to such
      terms in the Agreement.  In addition, the following terms have the
      following meanings:

      A.    "Accounts Payable" shall have the meaning set forth in Section
            2.4(a).

      B.    "Affiliate" means, with respect to any Person, (i) any Person
            directly or indirectly controlling, controlled by, or under common
            control with such other Person, and (ii) any family member of a
            party to this Agreement.  For purposes of determining whether a
            Person is an Affiliate, the term "control" shall mean the
            possession, directly or indirectly, of the power to direct or cause
            the direction of the management and policies of a Person, whether
            through ownership of securities, contract or otherwise.

      C.    "Applicable Law" means, with respect to any Person, any domestic or
            foreign, federal, state or local statute, law, ordinance, rule,
            administrative interpretation, regulation, order, writ, injunction,
            directive, judgment, decree or other requirement of any Governmental
            Authority (including any environmental law) applicable to such
            Person or any of its properties, assets, officers, directors,
            employees, consultants or agents (in connection with such officer's,
            director's, employee's, consultant's or agent's activities on behalf
            of such Person).

      D.    "Business Day" means any day other than a Saturday, Sunday or other
            day on which commercial banks in New York, New York are authorized
            or required by law to close.

      E.    "Closing Date" means the date of Closing.

      F.    "Closing Statement" shall have the meaning set forth in Section
            2.4(b).

      G.    "Company Subsidiary" means any Subsidiary of ISONICS.

      H.    "Company Voting Securities" shall mean, collectively, common stock,
            any preferred stock of ISONICS that is entitled to vote generally
            for the election of directors, any other class or series of ISONICS
            securities that is entitled to vote generally for the election of
            directors, and any other securities, warrants, options or rights of
            any nature (whether or not issued by ISONICS) that are convertible
            into or exchangeable for, or exercisable for the purchase of or
            otherwise give the holder thereof any rights in respect of, ISONICS
            common stock, ISONICS preferred stock that is entitled to vote
            generally for the election of directors, or any other class or
            series of ISONICS securities that is entitled to vote generally for
            the election of directors.

                                   EXHIBIT A


      I.    "Contemplated Transactions" means the transactions contemplated by
            this Agreement.

      J.    "Contracts" means all contracts, agreements, leases, licenses,
            commitments, sales, consulting and independent contractor
            arrangements and purchase orders, whether written or oral, that
            relate to or arise out of the DZ Business.

      K.    "Damages" means all demands, claims, actions or causes of action,
            assessments, losses, damages, costs, expenses, liabilities,
            judgments, awards, fines, sanctions, penalties, charges and amounts
            paid in settlement, including, without limitation, reasonable costs,
            fees and expenses of attorneys, experts, accountants, appraisers,
            consultants, witnesses, investigators and any other agents or
            representatives of such Person (with such amounts to be determined
            net of any resulting tax benefit and net of any refund or
            reimbursement of any portion of such amounts, including, without
            limitation, reimbursement by way of insurance or third party
            indemnification but subject to the increase in cost of insurance
            attributable to such reimbursement).

      L.    "DZ Business" shall have the meaning set forth in Recital A.

      M.    "Encumbrance" means any liability, obligation, mortgage, lien
            (including, but not limited to, Tax liens), pledge, charge, security
            interest, encumbrance, claim or similar right.

      N.    "Environmental Laws" means any and all past, present or future
            federal, state, local and foreign statutes, laws, regulations,
            ordinances, judgments, orders, codes, or injunctions, which relate
            to or otherwise impose liability for or standards of conduct
            concerning discharges or releases of any pollutants, contaminants or
            hazardous or toxic wastes, substances or materials into ambient air,
            water or land, or otherwise relating to the manufacture, processing,
            generation, distribution, use, treatment, storage, disposal,
            cleanup, transport or handling of Hazardous Materials including (but
            not limited to), The Resource Conservation and Recovery Act of 1976,
            as amended, The Comprehensive Environmental Response, Compensation
            and Liability Act of 1980, as amended, The Superfund Amendment and
            Reauthorization Act of 1984, as amended, The Toxic Substances
            Control Act, as amended ("TSCA"), and any other so-called
            "Superfund" or "Superlien" law, the Clean Water Act, Clear Air Act,
            or any other similar federal, state or local statutes in the United
            States or elsewhere.

      O.    "Estimated Closing Statement" shall have the meaning set forth in
            Section 2.4(a).

      P.    "Estimated Net Current Asset Amount" shall have the meaning set
            forth in Section 2.4(a).

      Q.    "Exchange Act" means the Securities Exchange Act of 1934, as
            amended.

                                   EXHIBIT A


      R.    "Final Net Current Asset Amount" shall have the meaning set forth in
            Section 2.4(b).

      S.    "GAAP" means United States generally accepted accounting principles
            as in effect on the date of this Agreement.

      T.    "Governmental Authority" means any foreign, domestic, federal,
            territorial, state or local governmental authority,
            quasi-governmental authority, instrumentality, court, government or
            self-regulatory organization, commission, tribunal or organization
            or any regulatory, administrative or other agency, or any political
            or other subdivision, department or branch of any of the foregoing.

      U.    "Hazardous Materials" means any flammable explosives, radioactive
            materials, hazardous waste, toxic substances or related materials,
            including, without limitation, asbestos, PCBs, petroleum product,
            ureaformaldehyde (in situations where considered hazardous or
            toxic), radon and any substances defined as "hazardous substances,"
            "hazardous materials" or "hazardous waste" in The Comprehensive
            Environmental Response, Compensation and Liability Act of 1980, as
            amended, and The Resource Conservation and Recovery Act of 1976, as
            amended, those substances defined as "hazardous wastes" in the
            regulations adopted and publications promulgated pursuant to said
            laws, those substances defined as "toxic substances" in The Toxic
            Substances Control Act, as amended, and any other substance,
            pollutant, contaminant, chemical, or industrial toxin or hazardous
            substance or waste, including without limitation hazardous
            materials, which by law is prohibited or otherwise regulated.

      V.    "Inventory" shall have the meaning set forth in Section 2.4(a).

      W.    "Intellectual Property" means any patent, trademark, copyright,
            tradename, or trade secret or any rights relating thereto, including
            any license.

      X.    "IRS" means the Internal Revenue Service.

      Y.    "ISONICS 1934 Act Reports" means the report on Form 10-KSB filed by
            ISONICS with the Securities and Exchange Commission for the year
            ended April 30, 1999, as such report may be amended, together with
            all reports ISONICS has filed with the Securities and Exchange
            Commission subsequent to that date.

      Z.    "Material Adverse Effect" means (i) with respect to the DZ Business,
            a material adverse effect on the assets, properties, business,
            financial condition or results of operations of the DZ Business
            taken as a whole, or (ii) with respect to any other Person, a
            material adverse effect on the assets, properties, business,
            financial condition or results of operations of such Person and its
            Subsidiaries taken as a whole.

      AA.   "Person" means any individual, corporation, unincorporated
            association, business

                                   EXHIBIT A


            trust, estate, partnership, limited liability company, trust,
            nation, political subdivision or agency thereof or any other entity.

      BB.   "Securities Act" means the Securities Act of 1933, as amended.

      CC.   "Silicon Purchase" shall have the meaning set forth in Section 3.1.

      DD.   "Subsidiary" as it relates to any Person, means another Person
            controlled by or under common control with such Person.  For
            purposes of this definition, "control" shall mean the legal,
            beneficial, or equitable ownership, directly or indirectly, of 50%
            or more of the shares eligible to vote for the election of directors
            or similar right to elect the governing body of such Person.

      EE.   "Successor" means any Person who assumes the place of either of the
            parties hereto, whether by merger, consolidation, assignment,
            acquisition of all or any substantial portion of the assets of such
            party or otherwise.

      FF.   "Warrant Shares" means the shares of common stock of ISONICS or
            other securities to be issued upon exercise of the Warrant.

      GG.   "Yale License" means the License Agreement dated October 21, 1997
            between ISONICS and Yale University.

      HH.   "Zinc Assets" means all inventory, equipment, and Contracts held or
            used by ISONICS at the Closing Date primarily in the conduct of the
            DZ Business.  Zinc Assets do not include cash, accounts receivable,
            or assets used by ISONICS in any other line of business.

      II.   Unless otherwise specifically provided, "knowledge," "to the
knowledge," "known by" or "known" (and any similar phrase) means (i) with
respect to E-P, to the actual knowledge after reasonable inquiry of the
executive officers of its Boron Division, or any of them, and (ii) with
respect to ISONICS, to the actual knowledge after reasonable inquiry of its
executive officers, or any of them, as of the date of this Agreement.

      III.  Unless otherwise specifically provided, "including" (and any
similar phrase) is inclusive, without limitation, and is not intended to be
exclusive to the list set forth.



                                   EXHIBIT A


                                      EXHIBIT B
                      REPRESENTATIONS AND WARRANTIES OF ISONICS

      ISONICS hereby represents and warrants to E-P as follows:

      1.    ORGANIZATION, GOOD STANDING AND CAPITALIZATION.

            1.1   ISONICS (i) is a corporation duly organized, validly existing
      and in good standing under the laws of the State of California, (ii) has
      full power and authority to own, operate and lease its properties, to
      carry on the DZ Business as now being conducted, and to enter into this
      Agreement and perform its obligations hereunder and (iii) and is duly
      qualified and in good standing as a foreign corporation authorized to do
      business in every jurisdiction where the failure so to qualify,
      individually or in the aggregate, would have a Material Adverse Effect.

            1.2   The authorized capital of ISONICS consists of 20,000,000
      shares of Common Stock, no par value ("Common Stock"), of which 6,607,670
      shares are outstanding, and 10,000,000 shares of Preferred Stock, no par
      value, of which 1,830,000 shares are outstanding.  All outstanding shares
      were, and the Warrant Shares when issued will be, issued in compliance
      with all applicable Federal and State securities laws.  Except as set
      forth in the ISONICS 1934 Act Reports or on SCHEDULE B1.2, there are (i)
      no outstanding subscriptions, warrants, options, conversion privileges or
      other rights or agreements to purchase or otherwise acquire or issue any
      shares of capital stock of ISONICS (or shares reserved for such purpose),
      (ii) no preemptive rights or rights of first refusal with respect to the
      issuance of additional shares of capital stock of ISONICS, including the
      Warrant Shares and (iii) no commitments or understandings (oral or
      written) of the Company to issue any shares, warrants, options or other
      rights.  To the best of ISONICS knowledge, except as set forth in the
      ISONICS 1934 Act Reports or on SCHEDULE B1.2, none of the shares of Common
      Stock are subject to any shareholders' agreement, voting trust agreement
      or similar arrangement or understanding.  Except as set forth in the
      ISONICS 1934 Act Reports or on SCHEDULE B1.2, the Company has no
      outstanding bonds, debentures, notes or other obligations the holders of
      which have the right to vote (or which are convertible into or exercisable
      for securities having the right to vote) with the stockholders of ISONICS
      on any matter.

            1.3   The issuance of the Warrant Shares has been duly authorized
      and the Warrant Shares have been, and at all times prior to exercise will
      have been, duly reserved for issuance and, when so issued, will be validly
      issued, fully paid and non-assessable.

                                   EXHIBIT B


      2.    EXECUTION AND EFFECT OF AGREEMENT.

            2.1   The execution, delivery and performance of this Agreement, the
      Registration Rights Agreement and the Warrant and the completion of the
      Contemplated Transactions, including, without limitation, the sale,
      transfer and assignment of the Zinc Assets to E-P and the Silicon
      Purchase, have been duly and effectively authorized by all necessary
      action on the part of ISONICS.  This Agreement has been, and at the
      Closing the Warrant and Registration Rights Agreement will have been, duly
      executed and delivered by ISONICS and constitutes, or will constitute,
      legal, valid and binding obligations of ISONICS enforceable in accordance
      with their terms subject to limitations on enforceability under bankruptcy
      and insolvency laws and principles of equity.

            2.2   Except as set forth on SCHEDULE B2.2, and subject to receiving
      the Consents listed thereon, neither the execution, delivery and
      performance of this Agreement, the Warrant or the Registration Rights
      Agreement nor the completion of the Contemplated Transactions, with or
      without the passage of time, or the giving of notice, or both, will (i)
      violate or conflict with any of the provisions of the organizational
      documents of ISONICS, (ii) violate the provisions of any Applicable Law,
      (iii) result in the creation of any Encumbrance upon any of the Zinc
      Assets, (iv) conflict with or result in a breach of or give rise to the
      right of termination of, or constitute a default of, or accelerate the
      performance required by, the terms of any judgment, court order, consent
      decree, or any agreement, indenture, mortgage, deed of trust, lease,
      Contract, note, bond, license, permit, authorization or other instrument,
      or any statute, ordinance, regulation or any other restriction of any kind
      or character, to which ISONICS, any of the Company Subsidiaries or any of
      the Zinc Assets is bound (with the understanding that an existing loan to
      ISONICS from Coast Business Credit which includes substantially all of
      ISONICS" assets as collateral will be repaid at the Closing from the
      proceeds to be paid to ISONICS from the Contemplated Transactions), or (v)
      cause ISONICS or any of the Company Subsidiaries to lose the benefit of
      any legal right that it presently enjoys or require the consent of any
      third party.

            2.3   Except as set forth on SCHEDULE B2.2 or as described in
      ISONICS' 1934 Act Reports, there are no loan agreements, credit
      agreements, guarantees, notes, mortgages, deeds of trust, subordination
      agreements, pledges, powers of attorney, consents, assignments, Contracts,
      notices, leases, security agreements or similar agreements or arrangements
      by which ISONICS, any of the Company Subsidiaries or the Zinc Assets are
      bound or in any way affected and neither ISONICS nor any of the Company
      Subsidiaries is not in breach or default of any such agreements or
      arrangements.

                                   EXHIBIT B


      3.    SEC DOCUMENTS

            3.1   FILED DOCUMENTS.  ISONICS has filed all forms, reports and
      documents required to be filed by it with the Securities and Exchange
      Commission (the "SEC") since its formation (collectively, the "ISONICS SEC
      Reports").  As of their respective dates, except as set forth in SCHEDULE
      B3.1, the ISONICS SEC Reports filed prior to the date hereof (i) complied
      as to form in all material respects with the applicable requirements of
      the Securities Act, the Exchange Act, and the rules and regulations
      thereunder and (ii) did not contain any untrue statement of a material
      fact or omit to state a material fact required to be stated therein or
      necessary to make the statements made therein, in the light of the
      circumstances under which they were made, not misleading.  The
      representation in clause (ii) of the preceding sentence shall not apply to
      any misstatement or omission in any ISONICS SEC Report filed prior to the
      date of this Agreement which was superseded by a subsequent ISONICS SEC
      Report filed prior to the date of this Agreement.  No Company Subsidiary
      is required to file any report, form or other document with the SEC.
      Except as set forth in SCHEDULE B3.1 neither ISONICS nor any Company
      Subsidiary is a party or is subject to any note, bond, mortgage,
      indenture, contract, lease, license, agreement, understanding, instrument,
      bid or proposal that is required to be described in or filed as an exhibit
      to any ISONICS SEC Report that is not described in or filed as an exhibit
      to such ISONICS SEC Report as required by the Securities Act or the
      Exchange Act, as the case may be.  Except as disclosed on SCHEDULE B3.1,
      no event has occurred prior to the date hereof as a consequence of which
      ISONICS would be required to file a Current Report on Form 8-K pursuant to
      the requirements of the Exchange Act as to which such a report has not
      been timely filed with the SEC.  Any reports, statements and registration
      statements and amendments thereto (including, without limitation, Annual
      Reports on Form 10-K, Quarterly Reports on Form 10-Q and Current Reports
      on Form 8-K, as amended) filed by ISONICS with the SEC after the date
      hereof shall be provided to E-P no later than the date of such filing.

            3.2   FINANCIAL STATEMENTS.  Each of the consolidated balance sheets
      of ISONICS included in or incorporated by reference into the ISONICS SEC
      Reports (including the related notes and schedules) fairly presents the
      consolidated financial position of ISONICS and the Company Subsidiaries as
      of its date, and each of the consolidated statements of income, retained
      earnings and cash flows of ISONICS included in or incorporated by
      reference into the ISONICS SEC Reports (including any related notes and
      schedules) fairly presents the results of operations, retained earnings or
      cash flows, as the case may be, of ISONICS and the Company Subsidiaries
      for the periods set forth therein (subject, in the case of unaudited
      statements, to normal year-end audit adjustments which would not be
      material in amount or effect), in each case in accordance with GAAP
      consistently applied during the periods involved, except as may be noted
      therein.  Neither ISONICS nor any of the Company Subsidiaries has any
      liabilities or obligations of any nature (whether accrued, absolute,
      contingent or otherwise) that would be required to be reflected on, or
      reserved against in, a balance sheet of ISONICS or in the notes thereto,
      prepared in accordance with GAAP consistently applied, except for (i)
      liabilities or obligations that were so reserved on, or reflected in
      (including the notes to), the consolidated balance sheet of ISONICS as of
      April 30, 1999;

                                   EXHIBIT B


      (ii) liabilities or obligations arising in the ordinary course of
      business since April 30, 1999 and (iii) liabilities or obligations which
      would not, individually or in the aggregate, have a Material Adverse
      Effect.

            3.3   ABSENCE OF CERTAIN CHANGES.  Since July 31, 1999, except as
      disclosed in the ISONICS 1934 Act Reports, there has not been (i) any
      event, occurrence, fact, condition, change, development or effect
      ("Event") that has had a Material Adverse Effect on ISONICS or the DZ
      Business; (ii) any declaration, payment or setting aside for payment of
      any dividend (except to ISONICS or a Company Subsidiary wholly owned by
      ISONICS) or other distribution or any redemption, purchase or other
      acquisition of any shares of capital stock or securities of ISONICS or any
      Company Subsidiary; (iii) any return of any capital or other distribution
      of assets to stockholders of ISONICS or any Company Subsidiary (except to
      ISONICS or a Company Subsidiary wholly owned by ISONICS); (iv) any
      acquisition (by merger, consolidation, acquisition of stock or assets or
      otherwise) of any person or business; (v) any other action or agreement or
      undertaking by ISONICS or any Company Subsidiary that, if taken or done on
      or after the date hereof would reasonably be expected to have a Material
      Adverse Effect; (vi) any material change in ISONICS' accounting
      principles, practices or methods; or (vii) any material loss or
      destruction of, or material amount of damage to, the Zinc Assets.

      4.    BOOKS AND RECORDS.  The regular books of account of ISONICS fairly
and accurately reflect all transactions since July 31, 1999, and are true,
correct and complete.

      5.    LAWSUITS AND PROCEEDINGS.  Except as set forth in the ISONICS 1934
Act Reports or on SCHEDULE B5, there is no suit, claim, action, civil or
criminal investigation or proceeding before or involving any court (at law or in
equity), arbitration or mediation panel, or Governmental Authority involving
ISONICS or any of Company Subsidiaries, and ISONICS is not aware of the
existence of facts or circumstances the consequence of which reasonably could be
expected to lead to any such suit, claim, action, audit or investigation,
pending or threatened against ISONICS or any of the Company Subsidiaries
including but not limited to, OSHA claims, workers' compensation claims,
employment discrimination claims, wage and hour claims, claims arising from or
relating to the violation of Environmental Laws or the handling of or disposal
of Hazardous Materials, claims arising out of laws, rules or regulations
relating to government contractors generally or under any government contract
laws or claims involving disputes between employees and ISONICS.  Neither
ISONICS nor any Company Subsidiaries is in default with respect to any decree,
injunction or other order of any court or Governmental Authority.




                                   EXHIBIT B


      6.    SUBSIDIARIES.

            6.1   Except as set forth in the ISONICS 1934 Act Reports or
      SCHEDULE B6.1, ISONICS has no Subsidiaries and does not otherwise directly
      or indirectly control any other business entity.

            6.2   Each Company Subsidiary is a corporation duly organized,
      validly existing and in good standing under the laws of the jurisdiction
      of its incorporation, has the corporate power and authority to own its
      properties and to carry on its business as it is now being conducted, and
      is duly qualified to do business and is in good standing in each
      jurisdiction in which the ownership of its property or the conduct of its
      business requires such qualification, except for jurisdictions in which
      such failure to be so qualified or to be in good standing would not,
      individually or in the aggregate, have a Material Adverse Effect.  The
      copies of the Certificates of Incorporation and Bylaws of ISONICS and the
      Company Subsidiaries previously made available to E-P are true and
      correct.

            6.3   Except as set forth in the ISONICS 1934 Act Reports SCHEDULE
      B6.3, ISONICS owns directly or indirectly all of the outstanding shares of
      capital stock (or other ownership interests having by their terms ordinary
      voting power to elect a majority of directors or others performing similar
      functions with respect to such Company Subsidiary) of each of the Company
      Subsidiaries.  Each of the outstanding shares of capital stock of each of
      the Company Subsidiaries is duly authorized, validly issued, fully paid
      and nonassessable, and is owned, directly or indirectly, by ISONICS.
      Except as set forth in SCHEDULE B6.3, each of the outstanding shares of
      capital stock of each Company Subsidiary is owned, directly or indirectly,
      by ISONICS free and clear of all liens, pledges, security interests,
      claims or other encumbrances other than liens imposed by local law which
      are not material.  There are no irrevocable proxies, voting agreements or
      similar obligations with respect to such capital stock of the Company
      Subsidiaries, and no equity securities or other interests of any of the
      Company Subsidiaries are or may become required to be issued or purchased
      by reason of any options, warrants, rights to subscribe to, puts, calls,
      reservation of shares of commitments of any character whatsoever relating
      to, or securities or rights convertible into or exchangeable for, shares
      of any capital stock of any Company Subsidiary, and there are no
      contracts, commitments, understandings or arrangements by which any
      Company Subsidiary is bound to issue additional shares of its capital
      stock, or options, warrants or rights to purchase or acquire any
      additional shares of its capital stock or securities convertible into or
      exchangeable for such shares.  The ISONICS 1934 Act Reports or SCHEDULE
      B6.3, sets forth the following information for each Company Subsidiary, if
      applicable:  (i) its name and jurisdiction of incorporation or
      organization; (ii) its authorized capital stock or share capital;
      (iii) the number of issued and outstanding shares of capital stock or
      share capital, and (iv) the percentage of such shares owned by ISONICS.

            6.4   Except as set forth in the ISONICS 1934 Act Reports or
      SCHEDULE B6.4, except for interests in the Company Subsidiaries, neither
      ISONICS nor any Company Subsidiary owns directly or indirectly any
      interests or investment (whether equity or debt) in any corporation,
      partnership, joint venture, business, trust or entity.

                                   EXHIBIT B


      7.    COMPLIANCE WITH LAWS.   Each of ISONICS and each Company
Subsidiary has, in all material respects, conducted its business (including
the DZ Business) and maintained its assets (including the Zinc Assets) in
compliance with all (and has not received notice of a claimed violation of
any) Applicable Laws and all orders, judgments and decrees of any court or
Governmental Authority applicable to, binding upon or affecting ISONICS or
any of its assets. All equipment owned, leased or used by ISONICS or any
Company Subsidiary, including the Zinc Assets, conforms in all material
respects with all Applicable Laws (including, without limitation all fire,
health and safety regulations). No ordinance or law, administrative
regulation or any other impediment of any kind prohibits, interferes with,
limits or impairs, or could, if enforced, prohibit, interfere with, limit or
impair the use, operation or maintenance of the Zinc Assets or the conduct of
the DZ Business.

      8.    LICENSES AND PERMITS.  ISONICS and the Company Subsidiaries
possess all licenses, permits, and other governmental consents, certificates,
approvals, or other authorizations (the "Permits") necessary for the
operation of their business at the locations and in the manner presently
operated.  Except as set forth on SCHEDULE B8, (a) ISONICS and each of the
Company Subsidiaries have complied with the terms and conditions of all
Permits and all such Permits are in full force and effect and (b) there has
occurred no event nor is any event, action, investigation or proceeding
pending or threatened which could cause or permit revocation or suspension of
or otherwise adversely affect the maintenance of any Permits.  Except with
respect to the Encumbrances created by the loan agreement with Coast Business
Credit (which will be repaid, and which Encumbrances will be released, at the
Closing with the proceeds to be paid to ISONICS), there are no provisions in,
or other Contracts to which ISONICS or any of the Company Subsidiaries is a
party relating to, any Permits which would preclude or limit E-P from
acquiring and operating the Zinc Assets substantially as they are now
operated.  ISONICS has delivered to E-P copies of all filings made by it in
connection with the TSCA registration of depleted zinc oxide.

      9.    INSURANCE.  ISONICS and each of the Company Subsidiaries have in
force and effect policies of fire, casualty, liability, worker's
compensation, life and other forms of insurance standard for its industries.
Neither ISONICS nor any of the Company Subsidiaries is in default with
respect to any provision contained in any insurance policy nor has ISONICS or
any of the Company Subsidiaries failed to give any notice or present any
claim thereunder in due and timely fashion and no cancellation or non-renewal
has been threatened or occurred with respect to any policy.  ISONICS and each
of the Company Subsidiaries have currently, and during each of its two past
fiscal years have had, in full force and effect, all insurance coverages
required by Applicable Law and have not been denied any insurance coverage
for which they have applied.

      10.   INTELLECTUAL PROPERTY.  The Yale License is the only Intellectual
Property material to ISONICS and the Company Subsidiaries.  To the knowledge
of ISONICS, the Yale License is valid and enforceable and does not infringe
upon, conflict with, or violate the rights of others, and neither ISONICS nor
any Company Subsidiary has received any notice or claim, and no proceedings
are pending or threatened, that the Yale License is not valid or enforceable
or that ISONICS or any Company Subsidiary has infringed upon, conflicted with
or violated any Intellectual Property of any third party.  Neither ISONICS
nor any Company Subsidiary has

                                   EXHIBIT B


given any notice to a third party, and is not aware, that any Intellectual
Property has been infringed upon, conflicted with or violated. The use by
ISONICS and the Company Subsidiaries of the Yale License as it is presently
used does not violate the terms thereof and the Yale License is adequate and
enforceable and in full force and effect.

      11.   BROKER AND FINDER FEES.  Neither ISONICS nor any Company
Subsidiary has engaged any broker or finder in connection with this
transaction, and no action by any of the foregoing will cause or support any
claim to be asserted against E-P by any broker, finder or intermediary in
connection with the Contemplated Transactions.

      12.   ENVIRONMENTAL MATTERS.  Except as set forth on SCHEDULE B12 or in
the ISONICS 1934 Act Reports, to the knowledge of ISONICS:

            12.1  The facilities occupied or used by ISONICS or any Company
      Subsidiary and any real property presently or formerly owned by, used by
      or leased to or by ISONICS or any Company Subsidiary or any predecessor of
      ISONICS or any Company Subsidiary (collectively, the "Property"), the
      existing and prior uses of such Property and all operations of the
      businesses of ISONICS and each Company Subsidiary comply and have at all
      times complied in all material respects with all Environmental Laws, and
      ISONICS and each Company Subsidiary is not in violation of nor has it
      violated, in connection with the ownership, use, maintenance or operation
      of such Property or the conduct of its business, any Environmental Law.

            12.2  ISONICS and each Company Subsidiary have all permits,
      registrations, approvals and licenses required by any Governmental
      Authority or Environmental Law.

            12.3  There has been no spill, discharge, leak, emission, injection,
      disposal, escape, dumping or release of any kind on, beneath or above such
      Property or into the environment surrounding such Property of any
      Hazardous Materials or any other similar event or condition which has
      given rise to or will give use to liability on the part of ISONICS or any
      Company Subsidiary.

      13.   ENVIRONMENTAL REPRESENTATIONS.  Except as set forth in SCHEDULE B13:

            13.1  There has been no past, and there is no current or anticipated
      storage, disposal, generation, manufacture, refinement, transportation,
      production or treatment of any Hazardous Materials at, upon or from such
      Property.  No asbestos-containing materials, underground storage tanks or
      polychlorinated biphenyls ("PCBs") are located on such Property.

            13.2  There are no claims, notices of violations, notice letters,
      investigations, inquiries or other proceedings now pending or threatened
      by any Governmental Authority or third party with respect to the DZ
      Business, the other businesses of ISONICS or any Company Subsidiary, or
      any Property  in connection with any actual or alleged failure to comply
      with any requirement of any Environmental Law.

                                   EXHIBIT B


      14.   ZINC ASSETS.  ISONICS has good and marketable title to the Zinc
Assets, free and clear of all Encumbrances except for the Encumbrance to
Coast Business Credit (which will be released at Closing), and Encumbrances
for personal property taxes not yet due and payable.  The Zinc Assets
constitute all operating assets owned by ISONICS or any of its Subsidiaries
which are necessary to conduct the DZ Business in the manner previously
conducted by ISONICS.

      15.   TAX RETURNS AND TAXES.

            15.1  All Tax Returns required to be filed by or on behalf of
      ISONICS or any Company Subsidiary have been duly filed and such Tax
      Returns are complete and accurate in all material respects.  All Taxes
      with respect to ISONICS and each Company Subsidiary or its assets shown to
      be payable on the Returns or on subsequent assessments with respect
      thereto have been paid in full, and no other Taxes are payable by ISONICS
      with respect to ISONICS or its assets.  There are no liens on any of
      ISONICS' assets with respect to Taxes, other than liens for Taxes not yet
      due and payable.  For the purposes of the foregoing:

            (a)   "Returns" means all reports, estimates, declarations of
      estimated tax, information statements and returns relating to, or required
      to be filed in connection with, any Taxes, including information returns
      or reports with respect to backup withholding and other payments to third
      parties; and

            (b)   "Tax" means any tax imposed of any nature including federal,
      state, local or foreign net income tax, alternative or add-on minimum tax,
      profits or excess profits tax, franchise tax, gross income, adjusted gross
      income or gross receipts tax, employment related tax (including employee
      withholding or employer payroll tax, FICA, or FUTA), real or personal
      property tax or ad valorem tax, sales or use tax, excise tax, stamp tax or
      duty, any withholding or backup withholding tax, value added tax,
      severance tax, prohibited transaction tax, premiums tax, occupation tax,
      together with any interest or any penalty, addition to tax or additional
      amount imposed by any governmental authority responsible for the
      imposition of any such tax.

            15.2  Except as disclosed in SCHEDULE B15, there are no agreements,
waivers of statutes of limitations, or other arrangements providing for
extensions of time in respect of the assessment or collection of any unpaid
Taxes against ISONICS or any Company Subsidiary.

      16.   ERISA AND EMPLOYEE BENEFIT PLANS.

            16.1  REPRESENTATIONS.

            (a)   No Employee of ISONICS or any Company Subsidiary is a member
      of any collective bargaining unit; neither ISONICS nor any Company
      Subsidiary is a party to any union agreement covering the Employees and no
      union organizing activities are taking place or have taken place within
      the past two years; nor does ISONICS or any Company Subsidiary have any
      employment agreements with any of its Employees except as described in the
      ISONICS 1934 Act Reports.

                                   EXHIBIT B


            (b)   Except as set forth in the ISONICS 1934 Act Reports and the
      Financial Statements contained therein, neither ISONICS nor any Company
      Subsidiary is liable for any arrearage of wages, any accrued or vested
      vacation pay or any tax or penalty for failure to comply with any
      applicable local, state or federal law relating to employment or labor,
      and there is not a controversy pending, threatened or in prospect between
      ISONICS or any Company Subsidiary and its Employees nor does ISONICS or
      any Company Subsidiary have knowledge that there is any basis for such a
      controversy.

            (c)   Completion of the Contemplated Transactions will not (A)
      entitle any individual to any bonus, incentive or severance pay or
      payments, (B) accelerate the time of payment or vesting of any benefit
      under any Plan, increase the amount of compensation due to any individual
      following Closing, or increase any benefits otherwise payable under any
      Employee Plan, or (C) result in the payment of an amount subject to the
      provisions of Section 280G of the Internal Revenue Code of 1986 (the
      "Code").

            (d)   Each of ISONICS and the Company Subsidiaries is in compliance
      in all material respects with all laws respecting occupational health and
      safety, employment, employment practices, and terms and conditions of
      employment, wages and hours, and is not engaged in any unfair labor
      practice and there is not now pending or threatened any charge or
      complaint against ISONICS or any Company Subsidiary by any governmental
      labor or employment agency or any representative thereof, and the
      completion of the Contemplated Transactions will not result in any such
      charge or complaint.

            (e)   Each of ISONICS or any Company Subsidiary is in compliance in
      all material respects with the provisions of ERISA related to the
      operation and maintenance of Employee Benefit Plans.  Each Benefit
      Arrangement is in material compliance with its terms and with the
      requirements prescribed by any and all statutes, orders, rules and
      regulations which are applicable to such Benefit Arrangement, including
      without limitation the Code.

            16.2  For the purposes of the foregoing, the following definitions
apply:

            (a)   "Benefit Arrangement" means each employment, severance,
      continuation pay, termination pay, layoff, or other similar written
      contract, arrangement or policy and each written plan or arrangement
      providing for health, medical, life or other welfare or fringe benefit
      coverage (including any insurance, self-insurance or other arrangements),
      workers' compensation, severance pay, retention agreements, disability
      benefits, supplemental unemployment benefits, holiday, education or
      vacation benefits, retirement benefits or deferred compensation,
      profit-sharing, benefits in the event of a sale of ISONICS or any Company
      Subsidiary or other change in the control, management or the ownership of
      ISONICS or any Company Subsidiary, bonuses, stock options, stock
      appreciation rights and other forms of incentive compensation or
      post-retirement insurance, compensation or benefits which (i) is not an
      Employee Plan, (ii) is or has been entered into, maintained, administered
      or contributed to, as the case may be, by ISONICS or any of its Affiliates
      and (iii) covers any Employee and/or Beneficiary or for which an

                                   EXHIBIT B


      Employee of ISONICS or any Company Subsidiary would be eligible upon
      retirement or other termination of service.

            (b)   "Beneficiary" means any Person who, at Closing, is not an
      Employee of ISONICS or any Company Subsidiary but who is the spouse,
      former spouse, dependent or beneficiary of an Employee if that spouse,
      dependent or beneficiary is or may become entitled to any coverage or
      benefit (whether or not contingent) provided under any Employee Plan or
      Benefit Arrangement as a result of that Person's relationship to an
      Employee.

            (c)   "Employee" means any Person who is actively employed as a
      common law employee or as an independent contractor by ISONICS or any
      Company Subsidiary or who, with respect to ISONICS or any Company
      Subsidiary, is on vacation, approved illness absence, long-term
      disability, authorized leave of absence (including leave under the Family
      and Medical Leave Act) or military service leave of absence as of the
      Closing Date.

            (d)   "Employee Plan" means each "employee benefit plan", as such
      term is defined in Section 3(3) of ERISA, which (i) is subject to any
      provision of ERISA, (ii) is or has been entered into, maintained,
      administered or contributed to by ISONICS or any of its Affiliates, and
      (iii) covers any Employee, Beneficiary or both, or for which an Employee
      would be eligible upon retirement or other termination of service.

            (e)   "ERISA" means the Employee Retirement Income Security Act of
      1974, as amended.

      17.  ADVERSE BUSINESS CONDITIONS.  Except as disclosed in the ISONICS
1934 Act Reports, ISONICS has no knowledge or information of any conditions,
facts, developments or circumstances which would have a Material Adverse
Effect upon ISONICS and its Subsidiaries, taken as a whole.  Except as
disclosed in the ISONICS 1934 Act Reports, without limiting the foregoing,
ISONICS has no knowledge of any written or oral communication, fact, event or
action that exists or has occurred that would tend to indicate that (i) any
customer will terminate its business relationship with ISONICS or any Company
Subsidiary or, following Closing, E-P in respect of the DZ Business, or (ii)
any current supplier to ISONICS or any Company Subsidiary will terminate its
business relationship with ISONICS or any Company Subsidiary or, following
Closing, E-P in respect of the DZ Business.

      18.   YEAR 2000.  All of the computer software programs, databases and
compilations, computer hardware (whether general or special purpose), and
other similar or related items of automated, computerized, and software
system that are used or relied on by ISONICS or a Company Subsidiary in the
conduct of its business will not malfunction, will not cease to function,
will not generate incorrect data, and will not provide incorrect results when
processing, providing, or receiving date-related data into and between the
twentieth and twenty-first centuries, except for such problems which
collectively would not have a Material Adverse Effect.

      19.   NO DISCRIMINATION.  Neither ISONICS (or any Company Subsidiary)
nor any

                                   EXHIBIT B


Employee of ISONICS (or any Company Subsidiary) has (i) committed any unfair
labor practice, (ii) discriminated against any Employee or any other Person
whether or not an Employee, based on that Employee's or Person's age, race,
creed, color, sex, religion, handicap or disability, or (iii) received any
complaints or notices from any Employee, other Person, or any Governmental
Authority alleging any such act.

      20.   EMPLOYMENT OBLIGATIONS.  Except as described in the ISONICS 1934
Act Reports, neither ISONICS nor any of the Company Subsidiaries has any
material obligations, contingent or otherwise, under any employment,
severance or consulting agreement.

      21.  CONTRACTS.  Except as set forth in the ISONICS 1934 Act Reports or
SCHEDULE B21, neither ISONICS nor any Company Subsidiary is a party or is
subject to, and their property and assets are not bound or affected by, any
contract which is material to the business or financial condition of ISONICS,
the DZ Business or the DZ Assets (a "Company Material Contract").  Except as
set forth in SCHEDULE B21, all Company Material Contracts are or will be
valid and binding and are or will be in full force and effect and enforceable
in accordance with their respective terms.  Except as set forth in SCHEDULE
B21, no consent of any person is needed in order that each such Company
Material Contract shall continue in full force and effect in accordance with
its terms without penalty, acceleration or rights of early termination by
reason of the consummation of the transactions contemplated by this
Agreement, except for consents the absence of which, individually or in the
aggregate, would not reasonably be expected to have a Material Adverse
Effect.  Neither ISONICS nor any Company Subsidiary is in violation or breach
of or default under any such Company Material Contract, nor to ISONICS'
knowledge is any other party to any such Company Material Contract in
violation or breach of or default under any such Company Material Contract,
in each case where such violation or breach would give rise to a right of
termination or modification.  For purposes of this Agreement "Government Bid"
shall mean any quotation, bid or proposal submitted to any Governmental Body
or any proposed prime contractor or higher-tier subcontractor of any
Governmental Body.  For purposes of this Agreement "Government Contract"
shall mean any prime contract, subcontract, letter contract, purchase order
or delivery order executed or submitted to or on behalf of any Governmental
Body or any prime contractor or higher-tier subcontractor, or under which any
Governmental Body or any such prime contractor or subcontractor otherwise has
or may acquire any right or interest.

      22.  FULL DISCLOSURE.  The representations and warranties made herein
by ISONICS do not contain any untrue statement of material fact and do not
omit to state any material fact necessary to make any statement, in light of
the circumstances under which the statement is made, not misleading.


                                   EXHIBIT B


                                     EXHIBIT C
                          REPRESENTATIONS AND WARRANTIES
                                       OF E-P

      E-P hereby represents and warrants to ISONICS as follows:

      1.    ORGANIZATION AND GOOD STANDING.  E-P is a limited liability
company duly organized, validly existing and in good standing under the laws
of the State of Delaware and has full power and authority to carry on its
business as it is now being conducted.

      2.    EXECUTION AND EFFECT OF AGREEMENT.  E-P has the power and
authority to enter into this Agreement and to perform the obligations to be
performed by E-P hereunder, and the execution and delivery of this Agreement
and the completion of the Contemplated Transactions hereby have been duly
authorized by all necessary action.  This Agreement has been duly executed
and delivered by E-P and constitutes a legal, valid and binding obligation of
E-P, enforceable against E-P in accordance with its terms, subject to
limitations on enforceability under bankruptcy and insolvency laws and
principles of equity.

      3.    RESTRICTIONS.  Neither the execution and delivery of this
Agreement nor the completion of the Contemplated Transactions hereby will
violate any of the provisions of the Certificate of Formation and Operating
Agreement of E-P.

      4.    CONSENTS.  Except as set forth on SCHEDULE C4, no consent or
approval of any court, governmental agency or other public authority, or of
any other person, corporation or entity is required as a condition to (a) the
validity or enforceability of this Agreement or any other instruments to be
executed by E-P to effectuate this Agreement, or (b) the completion or
validity of any of the transactions contemplated by this Agreement, except
for consents or approvals contemplated by this Agreement.

      5.    LAWSUITS AND PROCEEDINGS.  There is no suit, claim, action, civil
or criminal investigation or proceeding before or involving any court (at law
or in equity), arbitration or mediation panel or Governmental Authority
involving E-P or any of its Affiliates and, to E-P's knowledge, no such
proceeding is threatened, that would limit or prohibit its ability to perform
its ability to execute, deliver and perform this Agreement and the
Contemplated Transactions.

      6.    BROKER AND FINDER FEES.  Neither E-P nor any Affiliate of E-P has
engaged any broker or finder in connection with this transaction, and no
action by E-P or any Affiliate will cause or support any claim to be asserted
against ISONICS by any broker, finder or intermediary in connection with the
Contemplated Transactions.

      7.    RISKS OF FUTURE OPERATIONS.  E-P understands that the future
conduct of ISONICS' business is dependent upon a number of factors, including
historic working capital shortages, an existing default in the indebtedness
owed to Coast Business Credit, and the other factors set forth in the ISONICS
SEC Reports and elsewhere herein, and there is no assurance  that ISONICS
will be able to conduct its operations as contemplated in this Agreement or
any other information given to E-P.  In that connection, E-P understands that
certain statements

                                   EXHIBIT C


contained herein, in the ISONICS SEC Reports, and which have been given to
E-P using the terms "may", "expects to", and other terms denoting future
possibilities, are forward-looking statements.  The accuracy of these
statements cannot be guaranteed as they are subject to a variety of risks
which are beyond ISONICS' ability to predict or control.  These risks may
cause actual results to differ materially from the projections or estimates
contained in this report.  These risks include, but are not limited to, the
possibility that the described operations or other activities will not be
completed on economic terms, if at all, and the other risks described herein
and the other documents incorporated herein or attached hereto.  It is
important that E-P understands the significant risks which accompany the
establishment of a new business and the proposed conduct of ISONICS' future
operations.

      8.    REVIEW OF INFORMATION.

            8.1   E-P represents and warrants that it has reviewed the ISONICS
      SEC Reports and such other information regarding ISONICS which E-P, its
      management and advisors, have deemed necessary or appropriate in
      connection with the Silicon Purchase and the acquisition of the warrant to
      purchase ISONICS common stock.  E-P acknowledges that information about
      ISONICS is available on the EDGAR Web site maintained by the Securities
      and Exchange Commission (http://www.sec.gov), although all of such
      information is subject to the qualifications set forth therein.  E-P
      acknowledges that ISONICS will continue to file reports with the
      Securities and Exchange Commission and that such reports will contain more
      current information regarding ISONICS than set forth above.  E-P
      acknowledges that such information will be available on the Web sites
      described above, and ISONICS will provide E-P copies of such information
      upon telephonic or written request.

            8.2   E-P represents that it has conducted such due diligence
      investigation of the market for depleted zinc and the DZ Business, and
      that in determining to purchase the DZ Business it has relied solely on
      its own investigation into the DZ Business and on the express
      representations and warranties of ISONICS in this Agreement.

            8.3   ISONICS has given E-P the opportunity to ask questions of and
      to receive answers from persons acting on ISONICS' behalf concerning
      ISONICS, its business, management, financial condition, and the ISONICS
      SEC Reports, and the opportunity to obtain any additional information
      regarding ISONICS, its business and financial condition which ISONICS
      possesses or can acquire without unreasonable effort or expense including
      (without limitation) all minutes of meetings of the Board of Directors of
      the Company or committees thereof, and other relevant documents requested
      by E-P.  In addition, E-P has (or prior to the Closing will have)
      conducted such other financial or other inquiry as E-P deems necessary or
      appropriate in the conduct of E-P's due diligence investigation and has
      not relied on due diligence of any other party in connection herewith.

            8.4   E-P acknowledges and understands, however, that ISONICS has
      not authorized any person to make any statements on its behalf which would
      in any way contradict any of the information which ISONICS has provided to
      E-P in writing,

                                   EXHIBIT C


      including the information set forth in this Agreement or documents which
      are incorporated herein, and E-P further represents to ISONICS that E-P
      has not relied upon any such representations regarding ISONICS, its
      business or financial condition, or this transaction in making any
      decision to acquire the Warrant or to complete the Contemplated
      Transactions.

            8.5   E-P has reviewed the terms of this Agreement and all of the
      documents delivered in connection herewith or otherwise referenced herein
      with its legal, investment, tax, and financial advisors, and E-P has also
      consulted with such advisors with regard to the advisability of this
      investment to the extent E-P deems such consultation to be appropriate.
      E-P acknowledges that ISONICS has advised E-P that it recommends that E-P
      obtain such advice and consultation.  E-P further acknowledges that it has
      neither sought nor received any advice from ISONICS or any of its agents
      or affiliates with respect to any aspect of this Agreement or completion
      of the Contemplated Transactions.

      9.     LACK OF LIQUIDITY.  E-P acknowledges and understands that
although ISONICS common stock is currently trading on the over-the-counter
market and is quoted on the OTC Bulletin Board operating by the National
Association of Securities Dealers, Inc. (the "OTCBB"), such market is
extremely limited and volatile, and the continuation of that market on the
OTCBB or elsewhere is dependent on a number of factors beyond the control of
ISONICS and, consequently, there can be no assurance that the market for
ISONICS's common stock will continue.  Because ISONICS's common stock is
traded on the OTCBB, many broker-dealers will not participate in the market
for ISONICS's common stock and those that do participate may do so only in
compliance with the limitations established by strict rules promulgated by
the SEC (including without limitation Rule 15c2-6) and the National
Association of Securities Dealers, Inc. (the "NASD"), which rules may change
from time-to-time as deemed necessary or appropriate by the SEC or the NASD
to protect the public interest as such agencies determine "public interest"
to be.

      10.   ACCREDITED INVESTOR.  E-P has reviewed the definition of the term
"accredited investor" contained in Section 2(a)(15) of the Securities Act and
in Rules 215 and 501(a) thereunder.  Based on that review and the advice of
its legal advisors, E-P represents and warrants that it is an accredited
investor as defined in those provisions.

      11.   INVESTMENT REPRESENTATION.  E-P is acquiring the Warrant pursuant
to this Agreement for its own account and not on behalf of any other Person
or entity, or with a view to or for sale in connection with any distribution
other than in accordance with federal and state securities laws.  E-P has
received all information regarding ISONICS that has been requested.  E-P
further represents that it has had an opportunity to ask questions and
receive answers from ISONICS regarding the terms and conditions of the
proposed acquisition of the Warrant. E-P has experience as an investor in
securities of companies and acknowledge that it can bear the economic risk of
its investment in the ISONICS Warrant. E-P has, by reason of its business or
financial experience or financial experience of its professional advisors who
are unaffiliated with, and who are not compensated by, ISONICS or any
Affiliate thereof, directly or indirectly, the capacity to protect its
interest in connection with the acquisition of the Warrant.  E-P has the

                                   EXHIBIT C


financial capacity to bear the risk of its investment.

      12.   RESTRICTED NATURE OF UNDERLYING COMMON STOCK.  E-P understands
that the shares of ISONICS common stock issuable upon exercise of the Warrant
are not, and will not be, registered.  Therefore, E-P will only be able to
exercise the Warrant to the extent an exemption from registration for the
exercise exists under federal law and applicable state law at the time of
exercise. Consequently, should E-P exercise the Warrant E-P will be acquiring
shares of common stock which are "restricted" and E-P will be required to
execute an appropriate investment letter as a condition to the exercise of
the Warrant. ISONICS may, in its discretion, require E-P to make additional
representations and warranties which are, in its reasonable judgment,
necessary to establish the availability of an appropriate exemption from
registration.

      13.   LEGENDS AND STOP TRANSFER INSTRUCTION.

            13.1  The Warrant and any certificates representing shares of common
      stock issuable upon exercise of the Warrant will bear a legend
      substantially similar to the following:

      The securities represented by this certificate have not been registered
      under the Securities Act of 1933, as amended, or any state or foreign
      securities laws and are therefore (and will continue to be) restricted
      securities within the meaning of Rule 144 of the General Rules and
      Regulations promulgated under the Securities Act of 1933, as amended (the
      "Act"), and applicable state statutes.  The securities cannot be sold
      unless they are registered under the Act and any applicable state
      securities laws or unless an exemption from such registration requirements
      is available.  The availability of such an exemption must be established
      to the satisfaction of ISONICS.  Consequently, the holder must bear the
      economic risks of the investment in the securities for an indefinite
      period of time because they have not been registered under the Act or any
      state securities laws.  ISONICS is the only person which may register the
      securities under the Act and state securities statutes and ISONICS has not
      made any representations to the holder regarding the registration of the
      securities or compliance with Regulation A or some other exemption under
      the Act.  The holder will not sell or attempt to sell the securities
      without registration under the Act and any applicable state securities
      laws, unless exemptions from such registration requirements are available
      and the undersigned has satisfied ISONICS that an exemption is available
      for such sale.

            13.2   ISONICS shall have the right to issue stop transfer
      instructions to its transfer agent to bar the transfer of any of the
      certificates representing the Warrant and the ISONICS common stock
      issuable upon exercise of the Warrant except in accordance with the Act.

      14.   FULL DISCLOSURE.  The representations and warranties made herein
by E-P do not contain any untrue statement of material fact and do not omit
to state any material fact necessary to make any statement, in light of the
circumstances under which the statement is made, not misleading.

                                   EXHIBIT C