ESCROW AGREEMENT


         This ESCROW  AGREEMENT is entered into as of May 15, 1998 (the "Closing
Date"), by and among: ISONICS CORPORATION, a California corporation ("Isonics");
METALLURGY  INTERNATIONAL,  INC.,  a  Nevada  corporation  ("Seller");  COLORADO
BUSINESS  BANK,  a Colorado  corporation  (the  "Escrow  Agent");  and ROBERT H.
CUTTRISS (in his capacity as agent for Seller, the "Seller's Agent").

                                    RECITALS

         A. Isonics,  Seller and International Process Research  Corporation,  a
Colorado  corporation  (the  "Company"),  have  entered  into a  Stock  Purchase
Agreement,  dated April 30, 1998, (the "Purchase Agreement"),  pursuant to which
Isonics is purchasing all of the outstanding capital stock of the "Company,  all
of which are held  beneficially and of record by Seller,  in exchange for shares
of Common Stock, no par value, of Isonics (the "Isonics Stock").

         B. The Purchase  Agreement  contemplates the establishment of an escrow
arrangement to secure the  indemnification and other obligations of Seller under
the Purchase Agreement.

                                    AGREEMENT

         The parties to this Escrow  Agreement,  intending to be legally  bound,
agree as follows:


SECTION 1.        DEFINED TERMS

         Capitalized  terms  used  and not  otherwise  defined  in  this  Escrow
Agreement shall have the meanings assigned to them in the Purchase Agreement.


SECTION 2.        ESCROW

         2.1 Shares  and Stock  Powers to be Placed in  Escrow.  On the  Closing
Date, (i) Isonics shall issue certificates for an aggregate of 176,991 shares of
Isonics Stock (the "Escrow Shares") in the name of Seller, evidencing the shares
of Isonics Stock to be held in escrow in accordance with this Escrow  Agreement,
and deliver such stock  certificates to the Escrow Agent,  and (ii) Seller shall
deliver to the Escrow Agent five "assignments separate from certificate" ("Stock
Powers")  endorsed by Seller in blank,  each signature  guaranteed by a national
bank or New York  Stock  Exchange  member  firm.  The  shares  and Stock  Powers
referred to in this Section 2.1 shall be held by the Escrow Agent in escrow (the
"Escrow") in accordance  with the provisions of this Escrow  Agreement and shall
not be subject to any lien,  attachment,  trustee  process or any other judicial
process of any creditor of any party hereto.






         2.2  Indemnification.  Seller has agreed in Section 9.2 of the Purchase
Agreement  to  indemnify  and hold  harmless  the  Indemnitees  from and against
Damages.  Seller  agrees  that the  Escrow  Shares  shall be  security  for such
indemnity obligation,  subject to the limitations, and in the manner provided in
this Agreement.

         2.3 Voting of Shares.  The record  owners of the Escrow Shares shall be
entitled to exercise all voting rights with respect to such Escrow Shares.

         2.4   Dividends,   Etc.  Any  cash,   securities   or  other   property
distributable (whether by way of dividend,  stock split or otherwise) in respect
of or in exchange for any Escrow Shares shall not be  distributed  to the record
owner of such Escrow  Shares,  or if  distributed to Seller shall be immediately
delivered  by Seller to the Escrow  Agent,  shall be held by the Escrow Agent in
the Escrow.  At the time any Escrow  Shares are required to be released from the
Escrow to any Person pursuant to this Escrow Agreement,  any cash, securities or
other  property  previously  distributed  in respect of or in exchange  for such
Escrow Shares shall be released from the Escrow to such Person.

         2.5  Transferability.  The interests of Seller in the Escrow and in the
Escrow Shares shall not be assignable or  transferable,  other than by operation
of law.  No  transfer  of any of such  interests  by  operation  of law shall be
recognized or given effect until Isonics shall have received  written  notice of
such transfer.

         2.6 Fractional  Shares.  No fractional shares of Isonics Stock shall be
retained in or released from the Escrow  pursuant to this Escrow  Agreement.  In
connection  with any release of Escrow  Shares from the  Escrow,  Seller,  which
would  otherwise  be entitled to receive a fraction of a share of Isonics  Stock
(after  aggregating  all fractional  shares of Isonics Stock issuable to Seller)
shall be paid in cash the dollar  amount  (rounded to the nearest  whole  cent),
without  interest,  determined by multiplying  such fraction by $2.26,  and such
fractional share shall be released to Isonics.


SECTION 3.        CLAIM PROCEDURES

         3.1 Claim Notice. If Isonics  determines in good faith that there is or
has been a possible breach by Seller of any representation,  warranty,  covenant
or  other  provision  set  forth  in the  Purchase  Agreement  (collectively,  a
"Breach"), and if Isonics wishes to make a claim against the Escrow with respect
to such possible Breach,  then Isonics may deliver to the Seller's Agent and the
Escrow Agent a written notice of such possible Breach (a "Claim Notice") setting
forth (i) a reasonably  detailed  description  of the  circumstances  supporting
Isonics's  belief that such possible  Breach exists or has occurred,  and (ii) a
non-binding,  preliminary, good faith estimate of the aggregate dollar amount of
all Damages  that have  arisen and may arise as a direct or  indirect  result of
such  possible  Breach (such  aggregate  amount being  referred to as the "Claim
Amount").

         3.2 Response  Notice.  Within 30 calendar  days after the delivery of a
Claim Notice to the Seller's Agent,  the Seller's Agent shall deliver to Isonics
and the Escrow Agent a written notice (the "Response  Notice")  containing:  (i)
instructions  to the effect that Escrow  Shares  having a Fair Market  Value (as
defined in Section 5 of this Escrow  Agreement) equal to the entire Claim Amount
set forth in such Claim Notice are to be released from the Escrow to

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Isonics;  or (ii)  instructions  to the effect that Escrow  Shares having a Fair
Market  Value equal to a specified  portion  (but not the entire  amount) of the
Claim Amount set forth in such Claim  Notice are to be released  from the Escrow
to Isonics,  together with a statement that the remaining  portion of such Claim
Amount is being disputed;  or (iii) a statement that the entire Claim Amount set
forth in such Claim Notice is being disputed.  If no Response Notice is received
by Isonics and the Escrow Agent from the Seller's  Agent within 45 calendar days
after the delivery of a Claim Notice to the Seller's  Agent,  then the recipient
of such Claim  Notice  shall be deemed to have given  instructions  that  Escrow
Shares  having a Fair Market Value equal to the entire Claim Amount set forth in
such Claim Notice are to be released to Isonics from the Escrow.

         3.3      Release of Escrow Shares to Isonics.

                  (a) If the  Seller's  Agent gives (or is deemed to have given)
instructions  to the Escrow Agent that Escrow  Shares having a Fair Market Value
equal to the entire  Claim Amount set forth in a Claim Notice are to be released
from the Escrow to Isonics,  then the Escrow Agent shall be  authorized to use a
Stock Power held in the Escrow to transfer to Isonics,  from the Escrow,  Escrow
Shares having a Fair Market Value equal to such Claim Amount.

                  (b) If a Response  Notice  delivered by the Seller's  Agent in
response  to a Claim  Notice  contains  instructions  to the effect  that Escrow
Shares  having a Fair Market  Value equal to a  specified  portion  (but not the
entire  amount) of the Claim  Amount  set forth in such  Claim  Notice are to be
released  from the  Escrow  to  Isonics,  then  (i) the  Escrow  Agent  shall be
authorized to use a Stock Power held in the Escrow to transfer to Isonics,  from
the Escrow,  Escrow  Shares  having a Fair Market Value equal to such  specified
portion  of such  Claim  Amount,  and (ii) the  procedures  set forth in Section
3.3(c) of this Escrow  Agreement shall be followed with respect to the remaining
portion of such Claim Amount.

                  (c) If a Response  Notice  delivered by the Seller's  Agent in
response to a Claim  Notice  contains a  statement  that all or a portion of the
Claim Amount set forth in such Claim Notice is being disputed (such Claim Amount
or the disputed  portion  thereof being  referred to as the "Disputed  Amount"),
then,  notwithstanding anything contained in Section 4 of this Escrow Agreement,
the Escrow Agent shall  continue to hold in the Escrow (in addition to any other
Escrow Shares permitted to be retained in the Escrow, whether in connection with
any  other  dispute,  pursuant  to  Section  4.1 of this  Escrow  Agreement,  or
otherwise)  Escrow  Shares  having  a Fair  Market  Value  equal  to 100% of the
Disputed  Amount.  Such Escrow  Shares  shall  continue to be held in the Escrow
until such time as (i) Isonics and the Seller's Agent execute and deliver to the
Escrow  Agent a  settlement  agreement  containing  instructions  regarding  the
release of such shares,  or (ii) the Escrow Agent  receives a copy of a court or
arbitration  final order  containing  instructions to the Escrow Agent regarding
the release of such Escrow  Shares,  and Escrow  Agent shall be entitled to rely
conclusively on such final order. The Escrow Agent shall thereupon  release such
Escrow Shares from the Escrow in accordance with the  instructions  set forth in
such settlement agreement or court or arbitration order.

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SECTION 4.        RELEASE OF SHARES TO SELLER

         4.1  Shares to be  Released.  On the date 12 months  after the  Closing
Date, the Escrow Agent shall release to Seller from the Escrow all Escrow Shares
then held in the Escrow,  except for any Escrow  Shares  necessary  to satisfy a
claim set forth in a Claim  Notice which has been given and for which a Response
Notice has not been received or deemed to have been  receive,  or that are to be
retained  in the  Escrow  in  accordance  with  Section  3.3(c)  of this  Escrow
Agreement.

         4.2  Procedures for Releasing  Shares.  Any release of shares to Seller
pursuant to Section 4.1 of this  Escrow  Agreement  may be effected by mailing a
stock certificate to Seller certified mail, return receipt requested.


SECTION 5.        VALUATION OF SHARES HELD IN ESCROW

         For purposes of this Escrow  Agreement,  the "Fair Market Value" of the
Escrow  Shares  shall be  deemed  to be equal to the  number  of  Escrow  Shares
multiplied by $2.26 (adjusted as appropriate to reflect any stock split, reverse
stock split, stock dividend or similar transaction effected by Isonics after the
Closing Date).


SECTION 6.        FEES AND EXPENSES

         Seller shall  reimburse the Seller's Agent and the Escrow Agent for all
reasonable  fees  and  expenses  (including  attorneys'  fees)  incurred  by the
Seller's  Agent and the Escrow Agent in connection  with the  performance of his
duties hereunder.


SECTION 7.        LIMITATION OF ESCROW AGENT'S LIABILITY

         7.1 Limitation.  The Escrow Agent shall incur no liability with respect
to any action  taken or suffered by it in reliance  upon any notice,  direction,
instruction,  consent, statement or other documents believed by it to be genuine
and duly  authorized,  nor for other  action or inaction  except its own willful
misconduct  or  negligence.  The Escrow Agent shall not be  responsible  for the
validity or sufficiency of this  Agreement.  In all questions  arising under the
Escrow  Agreement,  the Escrow Agent may rely on the advice of counsel,  and for
anything  done,  omitted or suffered in good faith by the Escrow  Agent based on
such  advice the Escrow  Agent shall not be liable to anyone.  The Escrow  Agent
shall not be required to take any action hereunder  involving any expense unless
the  payment of such  expense  is made or  provided  for in a manner  reasonably
satisfactory to it.

         7.2  Indemnification of Escrow Agent.  Isonics and Seller,  jointly and
severally,  shall indemnify the Escrow Agent for, and hold it harmless  against,
any loss, liability or expense incurred without negligence or willful misconduct
on the part of Escrow Agent,  arising out of or in connection  with its carrying
out of its duties hereunder,  including any extraordinary fees and expenses that
may arise, such as fees of counsel and court costs. As among themselves, each of
Isonics  and Seller  shall be liable for  one-half  (1/2) of such  amounts.  The
Escrow Agent has a first and prior lien on the Escrow  Shares to secure any such
fees and  expenses.  The Escrow

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Agent is authorized to deduct any such fees and expenses from the Escrow Shares.
Any fees and expenses  owed but unpaid shall secure  interest at the rate of 12%
per annum.

         7.3 Non-Liability.  The Escrow Agent shall not be liable for any act it
may do or omit to do as the Escrow  Agent while  acting in good faith and in the
exercise of its own best  judgment.  Any act done or omitted by the Escrow Agent
pursuant to the advice of its  attorneys  shall be  conclusive  evidence of such
good  faith.  The Escrow  Agent  shall have the right to  consult  with  counsel
whenever any question arises  concerning the Escrow Agreement and shall incur no
liability whatsoever, for any delay reasonably required to obtain such advice of
counsel.

         7.4 Other Contract or Agreements. The Escrow Agent is not a party to or
bound by any agreement  between  Isonics,  Seller and Seller's  Agent other than
this The Escrow Agreement,  whether or not an original copy of such agreement is
held by Escrow Agent or is in the files of the Escrow Agent.

         7.5 Validity and Sufficiency of the Escrow. The Escrow Agent assumes no
responsibility  for the validity  and/or  sufficiency of any funds,  securities,
instruments or instructions held as Escrow Shares.


SECTION 8.        SUCCESSOR ESCROW AGENT

         In the event the Escrow  Agent  becomes  unavailable  or  unwilling  to
continue in its capacity herewith, the Escrow Agent may resign and be discharged
from its duties or obligations hereunder by giving resignation to the parties to
this Escrow Agreement,  specifying not less than 60 calendar days' prior written
notice of the date when such resignation shall take effect.  Isonics may appoint
a  successor  Escrow  Agent  without  the  consent  of the Agent so long as such
successor  is a bank with assets of at least $100  million,  and may appoint any
other successor Escrow Agent with the consent of the Agent,  which consent shall
not be unreasonably withheld. If, within such notice period, Isonics provides to
the Escrow  Agent  written  instructions  with respect to the  appointment  of a
successor Escrow Agent and directions for the transfer of any Escrow Shares then
held by the  Escrow  Agent to such  successor,  the  Escrow  Agent  shall act in
accordance with such  instructions  and promptly  transfer such Escrow Shares to
such designated successor.


SECTION 9.        GENERAL

         9.1  Confirmation of  Appointment.  Seller confirms the appointment and
authority  of the  Seller's  Agent as set  forth  in  Section  10.1 of  Purchase
Agreement  with respect to all matters  relating to this Escrow  Agreement.  Any
successor  to the  Seller's  Agent  who is  appointed  in  accordance  with  the
provisions of Section 10.1 of the Purchase  Agreement  shall be deemed to be the
"Seller's Agent" for purposes of this Escrow Agreement. Any document executed or
action taken by the Seller's Agent shall be binding upon Seller.

         9.2 Other  Agreements.  Nothing in this Escrow Agreement is intended to
limit any of Isonics's rights,  or any obligation of Seller,  under the Purchase
Agreement  or under any other

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agreement  entered into in connection with the transactions  contemplated  under
the Purchase Agreement.

         9.3  Notices.  Any notice  required or permitted to be given under this
Escrow  Agreement  shall be in writing and shall be deemed  effective:  (a) upon
personal  delivery;  (b)  two (2)  business  days  after  it is  deposited  in a
regularly maintained depository of the United States Postal Service,  registered
or certified  mail,  postage  prepaid,  return  receipt  requested  and properly
addressed;  (c) on the next  business  day  after  having  been  sent  either by
overnight  delivery  courier  service  (including,  but not  limited  to Federal
Express), or (d) upon receipt if by facsimile transmission on machine capable of
verifying receipt, and addressed or sent, to the parties at the addresses and/or
facsimile numbers set forth below:

                  if to Isonics:

                           Isonics Corporation
                           4010 Moorpark Avenue
                           Suite 119
                           San Jose, CA  95117
                           Fax:     (408) 260-2110
                           Attention:  President

                           With a copy to:

                           Cooley Godward LLP
                           3000 Sand Hill Road
                           Building 3, Suite 230
                           Menlo Park, CA  94025-7116
                           Fax:  (650) 854-2691
                           Attention:  Mark P. Tanoury, Esq.


                  if to the Seller's Agent:

                           Robert H. Cuttriss
                           5906 McIntyre Street
                           Golden, CO  80403
                           Fax:  (303) 279-6061

                           With a copy to:

                           Dufford & Brown, P.C.
                           1700 Broadway, Suite 1700
                           Denver, CO  80290
                           Fax:  (303) 832-8013
                           Attention:  Edward D. White III, Esq.

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                  if to the Escrow Agent:

                           Colorado Business Bank
                           Attn:  Community Trust Division, Sally Woods
                           821 17th Street, Second Floor
                           Denver, CO  80202
                           Fax:  (303) 293 -0700


         9.4 Counterparts;  Facsimile  Signatures.  This Escrow Agreement may be
executed in two or more counterparts, each of which shall be deemed an original,
and all of  which  together  shall  constitute  one and the same  instrument.  A
facsimile copy,  including a facsimile copy of a signature,  shall have the same
force and effect as an original.

         9.5  Headings.   The  underlined  headings  contained  in  this  Escrow
Agreement are for  convenience  of reference  only,  shall not be deemed to be a
part of this Escrow  Agreement and shall not be referred to in  connection  with
the construction or interpretation of this Escrow Agreement.

         9.6      Governing Law; Arbitration.

                  (a) This Agreement shall be construed in accordance  with, and
governed in all respects by, the internal laws of the State of Colorado (without
giving effect to principles of conflicts of laws).

                  (b) Any dispute,  claim or  controversy  of any nature arising
out of or relating to this Agreement, including without limitation any action or
claim based on tort,  contract,  statute,  or for any other cause of action, and
which relates in any way to the interpretation,  effect, termination,  validity,
enforcement,  performance and/or breach of this Agreement,  shall be resolved by
final binding arbitration  administered by the American Arbitration  Association
("AAA").  The arbitration shall be conducted before a panel of three arbitrators
under the  commercial  arbitration  rules of the AAA and shall be held at an AAA
facility in Denver, Colorado, or if no such facility exists then at any location
in  Jefferson  or  Denver  Counties,  Colorado,  as  the  parties  hereto  shall
reasonably agree. The parties hereto agree that all arbitrators  serving on such
panel must be available to serve on the panel in  accordance  with the timetable
of the arbitration.

                  (c)  Not for  the  adjudication  of any  matters  (other  than
judicial  review for fraud or undisclosed  bias),  but for the enforcement of an
arbitration  award or the  granting of  injunctive  relief,  the parties  hereto
irrevocably elect as the sole judicial forum for the adjudication of any matters
arising  under  or in  connection  with  this  Agreement,  and  consent  to  the
jurisdiction of, the courts of the State of Colorado.

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         9.7      Successors and Assigns; Parties in Interest.

                  (a)  Subject  to  Sections  2.5  and  9.8(b)  of  this  Escrow
Agreement,  this Escrow  Agreement shall be binding upon: the Seller's Agent and
Seller and their  respective  estates,  successors  and  assigns  (if any);  and
Isonics and its successors  and assigns (if any).  This Escrow  Agreement  shall
inure to the  benefit  of:  Seller;  Isonics;  the  other  Indemnitees;  and the
respective successors (if any) of the foregoing.

                  (b) Isonics may freely  assign any or all of its rights  under
this  Escrow  Agreement,  in whole  or in  part,  to any  other  Person  without
obtaining  the consent or  approval  of any other  party  hereto or of any other
Person.  Isonics may not delegate its obligations under this Escrow Agreement to
any other Person without the prior consent of the Seller's Agent. Neither Seller
nor the  Seller's  Agent  shall be  permitted  to assign any of his,  her or its
rights  or  delegate  any of  his,  her or its  obligations  under  this  Escrow
Agreement without Isonics's prior written consent.

         9.8      Waiver.

                  (a) No  failure  on the part of any  Person  to  exercise  any
power, right,  privilege or remedy under this Escrow Agreement,  and no delay on
the part of any Person in exercising any power, right, privilege or remedy under
this Escrow Agreement, shall operate as a waiver of such power, right, privilege
or remedy; and no single or partial exercise of any such power, right, privilege
or remedy shall preclude any other or further  exercise  thereof or of any other
power, right, privilege or remedy.

                  (b) No Person shall be deemed to have waived any claim arising
out of this Escrow  Agreement,  or any power,  right,  privilege or remedy under
this Escrow Agreement,  unless the waiver of such claim, power, right, privilege
or remedy is  expressly  set forth in a written  instrument  duly  executed  and
delivered on behalf of such Person;  and any such waiver shall not be applicable
or have any effect except in the specific instance in which it is given.

         9.9  Amendments.  This Escrow  Agreement may not be amended,  modified,
altered  or  supplemented  other  than by means  of a  written  instrument  duly
executed and delivered on behalf of Isonics and the Seller's Agent.

         9.10  Severability.  In the event  that any  provision  of this  Escrow
Agreement,  or the  application  of any such  provision  to any Person or set of
circumstances,   shall  be   determined  to  be  invalid,   unlawful,   void  or
unenforceable  to any extent,  the remainder of this Escrow  Agreement,  and the
application of such provision to Persons or circumstances other than those as to
which it is determined to be invalid, unlawful, void or unenforceable, shall not
be impaired or otherwise affected and shall continue to be valid and enforceable
to the fullest extent permitted by law.

         9.11 Entire Agreement. This Escrow Agreement and the Purchase Agreement
and the other  agreements  contemplated in the Purchase  Agreement set forth the
entire  understanding  of the parties  relating to the subject matter hereof and
thereof and supersede all prior agreements and  understandings  among or between
any of the parties relating to the subject matter hereof and thereof.

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         9.12     Construction.

                  (a)  For  purposes  of this  Escrow  Agreement,  whenever  the
context requires:  the singular number shall include the plural, and vice versa;
the masculine gender shall include the feminine and neuter genders; the feminine
gender shall  include the masculine  and neuter  genders;  and the neuter gender
shall include the masculine and feminine genders.

                  (b) The parties hereto agree that any rule of  construction to
the effect that  ambiguities are to be resolved against the drafting party shall
not be applied in the construction or interpretation of this Escrow Agreement.

                  (c) As used in this Escrow Agreement,  the words "include" and
"including,"  and  variations  thereof,  shall  not be  deemed  to be  terms  of
limitation,  but rather  shall be deemed to be  followed  by the words  "without
limitation."

                  (d) Except as  otherwise  indicated,  all  references  in this
Escrow  Agreement to "Sections" are intended to refer to Sections of this Escrow
Agreement.

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         IN WITNESS WHEREOF,  the parties have executed this Escrow Agreement as
of the date first above written.


                                       ISONICS, INC.,
                                        a California corporation


                                       By: /s/ Paul J. Catuna
                                           -------------------------------------
                                           Name: Paul J. Catuna
                                           Title: Chief Financial Officer



                                       METALLURGY INTERNATIONAL, INC.,
                                        a Nevada corporation


                                       By: /s/ Robert H. Cuttriss
                                           -------------------------------------
                                           Name: Robert H. Cuttriss
                                           Title: President



                                       COLORADO BUSINESS BANK
                                        a Colorado corporation


                                       By: /s/ Sally Woods
                                           -------------------------------------
                                           Name: Sally Woods
                                           Title: Vice President


                                       /s/ Robert H. Cuttriss
                                       -----------------------------------------
                                       Robert H. Cuttriss,
                                        as Seller's Agent

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