<TABLE> <S> <C>
<ARTICLE> 5
<LEGEND>
This schedule contains summary financial information extracted from Union
Carbide Corporation's Form 10-Q for the quarter ended June 30, 2000, and is
qualified in its entirety by reference to such financial statements.
</LEGEND>
<CIK> 0000100790
<NAME> UNION CARBIDE CORPORATION
<MULTIPLIER> 1,000,000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> DEC-31-2000
<PERIOD-END> JUN-30-2000
<CASH> 59
<SECURITIES> 0
<RECEIVABLES> 1166
<ALLOWANCES> 0
<INVENTORY> 743
<CURRENT-ASSETS> 2269
<PP&E> 9303
<DEPRECIATION> 4687
<TOTAL-ASSETS> 8417
<CURRENT-LIABILITIES> 2180
<BONDS> 1758
0
0
<COMMON> 158
<OTHER-SE> 2627
<TOTAL-LIABILITY-AND-EQUITY> 8417
<SALES> 3291
<TOTAL-REVENUES> 3291
<CGS> 2668
<TOTAL-COSTS> 2668
<OTHER-EXPENSES> 282<F1>
<LOSS-PROVISION> 0
<INTEREST-EXPENSE> 82
<INCOME-PRETAX> 197
<INCOME-TAX> 49
<INCOME-CONTINUING> 227
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> 227
<EPS-BASIC> 1.68
<EPS-DILUTED> 1.65
<FN>
<F1>Other expenses are equal to research and development of $78 and depreciation
and amortization of $204.
</FN>
<PAGE>
</TABLE>