Exhibit 10.5.1


           1984 UNION CARBIDE CASH BONUS DEFERRAL PROGRAM


Section 1:  Purpose

          Section 5.3 of the 1984 Union Carbide Cash Bonus Plan 
(the "1984 Plan") provides that the Committee administering the 
1984 Plan may defer payment of some or all cash bonus awards, and 
upon such terms and conditions, as the Committee in its 
discretion may determine.  The purpose of the 1984 Union Carbide 
Cash Bonus Deferral Program (the "Program") is to provide a 
procedure, as authorized by the 1984 Plan, by which potential 
recipients of bonus awards may annually elect in advance to defer 
a portion or all of their bonus awards under the 1984 Plan.  The 
Program shall be effective for the five calendar years 1984 
through 1988.


Section 2:  Definitions

          2.1:  "Beneficiary" means the person, persons or estate 
entitled (as determined under Section 7) to receive payment under 
the Program following a Participant's death.

          2.2:  "Committee" means the Compensation and Management 
Development Committee from time to time serving and appointed by 
the Board of Directors of the Corporation.

          2.3:  "Corporation" means Union Carbide Corporation, a 
New York corporation, and any successor thereof by merger, 
consolidation or otherwise.

          2.4:  "Date of Deferral" means the date on which the 
Corporation issues checks for bonus awards for a given Service 
Year.

          2.5:  "Disability" means a Participant's total physical 
or mental inability to perform any work for compensation or 
profit in any occupation for which the Participant is reasonably 
qualified by reason of training, education or ability, and which 
inability is adjudged to be permanent, as determined by the 
Committee.

          2.6:  "Employee" means a person who is a common law 
employee of the Corporation or one of its subsidiary corporations 
and "Eligible Employee" means a person who is an Eligible 
Employee within the meaning of the 1984 Plan.

          2.7:  "Participant" means an Eligible Employee who 
elects in advance under the Program to defer a portion or all of 
the employee's bonus award for a given Service Year under the 
1984 Plan, if one were to be paid to that employee for that year, 
and who is in fact subsequently awarded a bonus for that year, 
payable during the following year on the Date of Deferral.

        2.8:  "Retirement Date" means the earliest date on which 
a Participant could have retired with the right to receive 
immediately a non-actuarially reduced pension under the 
Corporation's Retirement Program.

        2.9:  "Service Year" means one of the calendar years 1984 
through 1988, as to which an election may be made in accordance 
with Section 5, and in respect of which a bonus may be paid 
during the following year on the Date of Deferral.


Section 3:  Administration

            The Committee shall supervise the administration and 
interpretation of the Program, may establish administrative 
regulations to further the purpose of the Program and shall take 
any other action necessary to the proper operation of the 
Program.  All decisions and acts of the Committee shall be final 
and binding upon all Participants, their Beneficiaries and all 
other persons.


Section 4:  Eligibility To Participate

            To be eligible to participate in the Program for a 
given Service Year, a person must have become an Eligible 
Employee not later than the day on or before which Eligible 
Employees must make the election provided for in Section 5 for 
that Service Year, reach the age of 40 on or before the last day 
of that Service Year and be living on the Date of Deferral for 
that Service Year.


Section 5:  Election To Participate

          5.1:  Participation in Program for Service Year 1984. 
On and after October 24, 1984, Eligible Employees shall be 
informed of the opportunity to participate in the Program for the 
1984 Service Year, and the terms and conditions of participation. 
 An Eligible Employee choosing to participate for the 1984 
Service Year must make an irrevocable election to do so not later 
than November 21, 1984 and otherwise in accordance with such 
procedures as may be established.

          5.2:  Participation in Program for Service Years 1985 
through 1988.  During each of the years 1984 through 1987, 
Eligible Employees shall be informed of the opportunity to 
participate in the Program for the Service Year immediately 
following, and the terms and conditions of participation.  An 
Eligible Employee choosing to participate must make an 
irrevocable election to do so on or before the day designated by 
the Committee and in any event prior to the first day of the 
Service Year, and otherwise in accordance with such procedures as 
may be established.

          5.3:  Effective Date of Participation.  While an 
election shall be irrevocable when made, participation, and the 
right to receive payment under the Program, shall become 
effective only on the Date of Deferral and only if, on such date, 
the Eligible Employee receives a cash bonus under the 1984 Plan 
(or would have received a cash bonus but for an election to defer 
under the Program).


Section 6:  Payments to Participants and Beneficiaries

          6.1:  Normal Payments.  A Participant who remains an 
Employee at least until the Participant's Retirement Date shall 
be entitled to 15 annual Normal Payments, commencing within 120 
days following the latest of:

                (a)     the date of actual retirement,

                (b)     the Participant's 65th birthday, or

                (c)     10 years following the Date of Deferral.

Unless the Participant elects the Alternate Payments provided for 
by Section 6.2, payments shall be made in accordance with a 
payment table established by the Committee for each Service Year 
and communicated to Eligible Employees at the time they are 
offered the opportunity to participate in the Program for that 
year.  The payment table attached as Exhibit A shall apply to the 
deferral of cash bonus awards in respect of the 1984 and 1985 
Service Years.

          6.2:  Alternate Payments.  In lieu of the Normal 
Payments provided for by Section 6.1, a Participant who remains 
an Employee at least until the Participant's Retirement Date and 
who irrevocably so elects at the time the applicable election to 
participate is made, shall be entitled to 15 annual Alternate 
Payments, commencing within 120 days following the latest of:

                 (a)     the date of actual retirement,

                 (b)     the Participant's 62nd birthday, or

                 (c)     seven years following the Date of
                         Deferral.

Alternate Payments may not commence more than 36 months earlier 
than Normal Payments would have commenced.  If Alternate Payments 
commence earlier than Normal Payments would have commenced, the 
Alternate Payments shall be the amount of the applicable Normal 
Payments reduced by .4167 percent (.004167) for each month of 
early commencement.

          6.3:  Payment Dates of Annual Payments after the 
Initial Payment.  All annual Normal or Alternate Payments after 
the initial payment shall be made on April 1, commencing on the 
April 1 next following the date the initial payment was due in 
accordance with Section 6.1 or 6.2.

          6.4:  Payments upon Disability.  A Participant 
determined by the Committee to have suffered a Disability (as 
defined in Section 2.5) while an Employee shall be entitled to 15 
annual Normal Payments (or 15 annual Alternate Payments if the 
Participant so elected).  Such payments shall commence and 
continue at the times provided in Sections 6.1, 6.2 or 6.3, as if 
the Participant had actually retired on the Participant's 
Retirement Date.

          6.5:  Payments upon Death.  If a Participant already 
receiving payments under Sections 6.1, 6.2 or 6.4 dies at any 
time before having received 15 annual (Normal or Alternate) 
Payments, the remaining payments shall be made, as they become 
due, to the Participant's Beneficiary.  If death occurs before 
annual payments to the Participant commence, the Participant's 
Beneficiary shall receive 15 annual Normal Payments (any election 
to receive Alternate Payments shall be disregarded), commencing 
within 120 days following the Participant's death.  Annual 
payments after the initial payment shall be made on April 1, 
commencing on the April 1 next following the date the initial 
payment was made.

          6.6:  Committee's Right To Commute Annual Payments in 
respect of One or More Service Years.  The Committee, in its 
discretion, may decide to make lump sum payments to all 
Participants, in respect of a particular Service Year, in lieu of 
the annual (Normal or Alternate) payments provided for in 
Sections 6.1, 6.2, 6.4 or 6.5.  In such event, a Participant or 
Beneficiary who is already receiving Normal or Alternate Payments 
in respect of that Service Year shall receive a lump sum payment 
in lieu of annual payments equal to the present value of the 
amount remaining to be paid to the Participant or Beneficiary 
under the Program, using as a discount factor the rate of return 
applicable to the Participant's age on the last day of that 
Service Year, provided in the payment table applicable to that 
Service Year.  Such lump sum payments shall be computed as of a 
date to be determined by the Committee in its discretion, and 
shall be paid within 120 days thereafter.  A Participant who has 
not already become entitled to payment for that Service Year, as 
described in Section 6.9, or who has become entitled to payment 
but has not received the initial payment, shall receive, in lieu 
of any other payment under the Program, a lump sum payment, 
discounted as in the case of Participants who are already 
receiving annual payments, within 120 days after the date the 
Participant would have received the initial payment.

          6.7:  Payment upon Termination of Employment.  A 
Participant whose employment by the Corporation terminates, for 
any reason other than (a) retirement on or after the 
Participant's Retirement Date, (b) death, (c) Disability, (d) the 
reason set forth in the next sentence, or (e) a reason approved 
by the Committee, shall receive, within 120 days following the 
effective date of termination of employment, a lump sum payment, 
in lieu of any other payment under the Program, equal to the 
amount of bonus award or awards deferred, plus interest thereon 
from the April 1 following the applicable Service Year or Service 
Years to the date of payment at the rate of six per cent per 
year, compounded annually.  A Participant whose employment is 
terminated by the Corporation for willful failure to perform the 
normal duties of employment, or for an act of dishonesty in 
connection with such Participant's employment, shall receive, 
within 120 days following the effective date of termination of 
employment, a lump sum payment, in lieu of any other payment 
under the Program, equal to the amount of bonus award or awards 
deferred.

          6.8:  Payments upon Program Termination.  The 
Corporation may terminate the Program at any time if the 
Committee, in its sole discretion, determines that changes in 
Federal or state law, changes in general economic conditions or 
changes in the financial condition of the Corporation render 
continuation of the Program undesirable.  In such event, each 
Participant or Beneficiary who has, on or before the effective 
date of Program termination, already become entitled to payment 
under the Program, as described in Section 6.9, shall receive the 
payments to which such person was entitled under the Program, 
unless the Committee, in its discretion, upon Program termination 
or at any time thereafter, decides to make lump sum payments in 
lieu of annual payments equal to the present value of such 
payments, using as discount factors the rates of return, 
applicable to Participants' ages on the last days of the 
applicable Service Years, provided in the applicable payment 
tables.  Such lump sum payments shall be computed as of a date to 
be determined by the Committee in its discretion, and shall be 
paid within 120 days thereafter.  Each other Participant or 
Beneficiary shall receive, within 120 days following the 
effective date of Program termination (to be determined by the 
Committee), in lieu of any other payment under the Program, a 
lump sum payment to be determined by the Committee and at least 
equal to the sum of (i) the amount of bonus award or awards 
deferred and (ii) interest thereon from the April 1 following the 
applicable Service Year to the date of payment at the rate of six 
per cent per year, compounded annually.

          6.9:  Meaning of "already become entitled to payment." 
The phrase "already become entitled to payment" used in Sections 
6.6 and 6.8 means that

                  (i)   A Participant has retired on or after the
                        Participant's Retirement Date, but the
                        payments provided for by Sections
                        6.1 or 6.2 have not all been made,

                 (ii)   A Participant has been determined by the
                        Committee to have suffered a Disability,
                        but the payments provided for by Section
                        6.4 have not all been made,

                (iii)   A Participant has died, but the payments
                        provided for by Section 6.5 have not all
                        been made, or

                 (iv)   A Participant's employment with the
                        Corporation has terminated, but the
                        payment provided for by Section 6.7 has
                        not been made.

            6.10:  Reduction of Payments.  All payments under the 
Program shall be reduced by amounts the Corporation is required 
to withhold under applicable law.

Section 7:  Beneficiaries

          A Participant may at any time and from time to time 
prior to death designate one or more Beneficiaries to receive 
payments to be made following the Participant's death.  If no 
such designation is on file with the Corporation at the time of a 
Participant's death, the Participant's Beneficiary shall be the 
beneficiary or beneficiaries named in the beneficiary designation 
most recently filed by the Participant with the Corporation under 
The Savings Plan for Employees of Union Carbide Corporation and 
Participating Subsidiary Companies.  If the Participant has not 
effectively designated a beneficiary under such Savings Plan, or 
if no beneficiary so designated has survived the Participant, the 
Participant's Beneficiary shall be the beneficiary or 
beneficiaries named in the beneficiary designation most recently 
filed by the Participant with the Corporation under the 401(k) 
Opportunity Plan for Salaried Employees of Union Carbide 
Corporation.  If the Participant has not effectively designated a 
beneficiary under either such Plan, or no beneficiary so 
designated has survived the Participant, the Participant's 
Beneficiary shall be the Participant's surviving spouse, or, if 
no spouse has survived the Participant, the estate of the 
deceased Participant.  If an individual Beneficiary cannot be 
located for a period of one year following the Participant's 
death, despite mail notification to the Beneficiary's last known 
address, and if the Beneficiary has not made a written claim for 
benefits within such period to the Committee, the Beneficiary 
shall be treated as having predeceased the Participant.  The 
Committee may require such proof of death and such evidence of 
the right of any person to receive all or part of the benefit of 
a deceased Participant as the Committee may consider to be 
appropriate.  The Committee may rely upon any direction by the 
legal representatives of the estate of a deceased Participant, 
without liability to any other person.


Section 8:  General Provisions

          8.1:  Prohibition of Assignment or Transfer.  Any 
assignment, hypothecation, pledge or transfer of a Participant's 
or Beneficiary's right to receive payments under the Program 
shall be null and void and shall be disregarded.

          8.2:  Program Not To Be Funded.  The Corporation is not 
required to, and will not, for the purpose of funding the 
Program, segregate any monies from its general funds, create any 
trusts, or make any special deposits, and the right of a 
Participant or Beneficiary to receive a payment under the Program 
shall be no greater than the right of an unsecured general 
creditor of the Corporation.

          8.3:  Effect of Participation.  Neither selection as an 
Eligible Employee, nor an election to participate or 
participation in the Program, shall entitle an Eligible Employee 
to receive a bonus award under the 1984 Plan, or affect the 
Corporation's right to discharge an Eligible Employee or a 
Participant.

          8.4:  Medical Examinations.  An Eligible Employee 
making an election under Section 5 may be required, for the 
Service Year as to which an election has been made, to submit to 
a physical examination in connection with that election.  If an 
electing Eligible Employee refuses to submit to such an 
examination, the Committee may, in its discretion, on or before 
the applicable Date of Deferral, cancel the Employee's 
participation in the Program for that Service Year.

          8.5:  Communications To Be in Writing.  All elections, 
requests and communications to the Corporation from Participants 
and Beneficiaries, and all communications to such persons from 
the Corporation, shall be in writing, and in such form and 
manner, and within such time, as the Corporation shall determine.

          8.6:  Absence of Liability.  No officer, director or 
employee of the Corporation shall be personally liable for any 
act or omission to act, under the Program, of any other person, 
or, except in circumstances involving bad faith, for such 
officer's, director's or employee's own act or omission to act.

          8.7:  Titles for Reference Only.  The titles given 
herein to Sections and subsections are for reference only and are 
not to be used to interpret the provisions of the Program.

          8.8:  New York Law To Govern.  All questions pertaining 
to the construction, regulation, validity and effect of the 
provisions of the Program shall be determined in accordance with 
New York law.

          8.9:  Amendment.  The Corporation may at any time amend 
the Program, as set forth herein, but no amendment may be adopted 
which alters the payments due Participants or Beneficiaries, or 
the times at which payments are due, without the consent of each 
Participant affected by the amendment and of each Beneficiary (of 
a then deceased Participant) affected by the amendment.

                            EXHIBIT A
            Payment Table for 1984 and 1985 Service Years


                                                    Approximate
                                                  Rate of Return
 Age on the   Annual 15-Year                   Calculated through
Last Day of  Payment for Each                     Receipt of the
the Service  $1,000 of Bonus      Total of          Last of 15
   Year       Award Deferred   Annual Payments    Annual Payments

    40           2,721              40,815             12.75
    41           2,445              36,675             12.80
    42           2,194              32,910             12.85
    43           1,968              29,520             12.90
    44           1,763              26,445             12.95
    45           1,578              23,670             13.00
    46           1,411              21,165             13.05
    47           1,261              18,915             13.10
    48           1,126              16,890             13.15
    49           1,004              15,060             13.20
    50             895              13,425             13.25
    51             797              11,955             13.30
    52             709              10,635             13.35
    53             630               9,450             13.40
    54             559               8,385             13.45
 55 or older       496               7,440             13.50

         1984 UNION CARBIDE CASH BONUS DEFERRAL PROGRAM

                        Table of Contents



Section 1:  Purpose                                        1

Section 2:  Definitions                                    1

          2.1:   Beneficiary                               1
          2.2:   Committee                                 1
          2.3:   Corporation                               1
          2.4:   Date of Deferral                          1
          2.5:   Disability                                1
          2.6:   Employee and Eligible Employee            1
          2.7:   Participant                               1
          2.8:   Retirement Date                           2
          2.9:   Service Year                              2

Section 3:  Administration                                 2

Section 4:  Eligibility To Participate                     2

Section 5:  Election To Participate                        2

          5.1:  Participation in Program for Service
                  Year 1984                                2
          5.2:  Participation in Program for Service
                  Years 1985 through 1988                  2
          5.3:  Effective Date of Participation            3

Section 6:  Payments to Participants
                   and Beneficiaries                       3

          6.1:  Normal Payments                            3
          6.2:  Alternate Payments                         3
          6.3:  Payment Dates of Annual Payments
                    after the Initial Payment              4
          6.4:  Payments upon Disability                   4
          6.5:  Payments upon Death                        4
          6.6:  Committee's Right To Commute Annual
                    Payments in respect of One or
                    More Service Years                     4
          6.7:  Payment upon Termination of 
                    Employment                             5
          6.8:  Payments upon Program Termination          5
          6.9:  Meaning of "already become
                    entitled to payment"                   6
          6.10:  Reduction of Payments                     6

Section 7:  Beneficiaries                                  6

Section 8:  General Provisions                             7

          8.1:  Prohibition of Assignment
                    or Transfer                            7
          8.2:  Program Not To Be Funded                   7
          8.3:  Effect of Participation                    7
          8.4:  Medical Examinations                       7
          8.5:  Communications To Be in Writing            7
          8.6:  Absence of Liability                       7
          8.7:  Titles for Reference Only                  8
          8.8:  New York Law To Govern                     8
          8.9:  Amendment                                  8