<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS RESTATED SUMMARY FINANCIAL INFORMATION EXTRACTED FROM
UNION CARBIDE CORPORATION'S FORMS 10-Q FOR THE QUARTERS ENDED MARCH 31, 1997
AND 1996, JUNE 30, 1997 AND 1996, AND SEPTEMBER 30, 1997 AND 1996, AND IS
QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<RESTATED> 
<CIK> 0000100790
<NAME> UNION CARBIDE CORPORATION
<MULTIPLIER> 1,000,000
       
                                                                       
<PERIOD-TYPE>                   9-MOS                   6-MOS                   3-MOS
<FISCAL-YEAR-END>                          DEC-31-1996             DEC-31-1996             DEC-31-1996
<PERIOD-START>                             JAN-01-1996             JAN-01-1996             JAN-01-1996
<PERIOD-END>                               SEP-30-1996             JUN-30-1996             MAR-31-1996
<CASH>                                             111                      78                     144
<SECURITIES>                                         0                       0                       0
<RECEIVABLES>                                     1058                    1079                    1061
<ALLOWANCES>                                         0                       0                       0
<INVENTORY>                                        528                     515                     546
<CURRENT-ASSETS>                                  1910                    1856                    1893
<PP&E>                                            6993                    6875                    6758
<DEPRECIATION>                                    3698                    3673                    3632
<TOTAL-ASSETS>                                    6518                    6334                    6314
<CURRENT-LIABILITIES>                             1441                    1290                    1237
<BONDS>                                           1295                    1288                    1289
<PREFERRED-MANDATORY>                              144                     145                     145
<PREFERRED>                                          0                       0                       0
<COMMON>                                           155                     155                     155
<OTHER-SE>                                        1929                    1910                    1968
<TOTAL-LIABILITY-AND-EQUITY>                      6518                    6334                    6314
<SALES>                                           4598                    3060                    1501
<TOTAL-REVENUES>                                  4598                    3060                    1501
<CGS>                                             3394                    2249                    1099
<TOTAL-COSTS>                                     3394                    2249                    1099
<OTHER-EXPENSES>                                   350<F1>                 230<F3>                 111<F4>
<LOSS-PROVISION>                                     0                       0                       0
<INTEREST-EXPENSE>                                  55                      37                      23
<INCOME-PRETAX>                                    691                     467                     236
<INCOME-TAX>                                       194                     131                      66
<INCOME-CONTINUING>                                491                     330                     157
<DISCONTINUED>                                       0                       0                       0
<EXTRAORDINARY>                                      0                       0                       0
<CHANGES>                                            0                       0                       0
<NET-INCOME>                                       491                     330                     157
<EPS-PRIMARY>                                     3.64<F2>                    2.42<F2>                    1.15<F2>
<EPS-DILUTED>                                     3.21<F2>                    2.13<F2>                    1.01<F2>
<FN>
<F1>OTHER EXPENSES FOR THE NINE MONTHS ENDED SEPTEMBER 30, 1996 ARE EQUAL TO
RESEARCH AND DEVELOPMENT OF 115 AND DEPRECIATION AND AMORTIZATION OF 235.
<F2>THE EPS-PRIMARY AMOUNT REPRESENTS BASIC EARNINGS PER SHARE AND THE
EPS-DILUTED AMOUNT REPRESENTS DILUTED EARNINGS PER SHARE, COMPUTED IN
ACCORDANCE WITH STATEMENT OF FINANCIAL ACCOUNTING STANDARDS NO. 128,
"EARNINGS PER SHARE".
<F3>OTHER EXPENSES FOR THE SIX MONTHS ENDED JUNE 30, 1996 ARE EQUAL TO
RESEARCH AND DEVELOPMENT OF 76 AND DEPRECIATION AND AMORTIZATION OF 154.
<F4>OTHER EXPENSES FOR THE THREE MONTHS ENDED MARCH 31, 1996 ARE EQUAL TO
RESEARCH AND DEVELOPMENT OF 36 AND DEPRECIATION AND AMORTIZATION OF 75.
</FN>