<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM UNION
CARBIDE CORPORATION'S FORM 10-Q FOR THE QUARTER ENDED SEPTEMBER 30, 1997, AND IS
QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<CIK> 0000100790
<NAME> UNION CARBIDE CORPORATION
<MULTIPLIER> 1,000,000
       
                             
<PERIOD-TYPE>                   9-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-END>                               SEP-30-1997
<CASH>                                             132
<SECURITIES>                                         0
<RECEIVABLES>                                     1064
<ALLOWANCES>                                         0
<INVENTORY>                                        556
<CURRENT-ASSETS>                                  1954
<PP&E>                                            7577
<DEPRECIATION>                                    3886
<TOTAL-ASSETS>                                    6975
<CURRENT-LIABILITIES>                             1306
<BONDS>                                           1459
<PREFERRED-MANDATORY>                              138
<PREFERRED>                                          0
<COMMON>                                           155
<OTHER-SE>                                        2063
<TOTAL-LIABILITY-AND-EQUITY>                      6975
<SALES>                                           4963
<TOTAL-REVENUES>                                  4963
<CGS>                                             3650
<TOTAL-COSTS>                                     3650
<OTHER-EXPENSES>                                   374<F1>
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                  57
<INCOME-PRETAX>                                    772
<INCOME-TAX>                                       228
<INCOME-CONTINUING>                                529
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                       529
<EPS-PRIMARY>                                     3.84
<EPS-DILUTED>                                     3.49
<FN>
<F1>OTHER EXPENSES ARE EQUAL TO RESEARCH AND DEVELOPMENT OF 118 AND DEPRECIATION
AND AMORTIZATION OF 256.
</FN>