1,1,1,2-Tetrachloroethane
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| Appearance | Clear liquid |
| Density | 1.5532 g/cm3 |
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| Vapor pressure | 14 mmHg (25°C)[2] |
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1,1,1,2-Tetrachloroethane is a chlorinated hydrocarbon. It is a colorless liquid with a sweet chloroform-like odor. It is used as a solvent and in the production of wood stains and varnishes. It is an isomer of 1,1,2,2-tetrachloroethane.
Production
1,1,1,2-Tetrachloroethane can be obtained by a two-step addition reaction of acetylene with chlorine (via dichloroethene), but this mainly produces 1,1,2,2-tetrachloroethane.
It can be obtained directly by chlorination of 1,1,2-trichloroethane:[3]
Safety
IARC has classified 1,1,1,2-tetrachloroethane as a possible carcinogen for humans in 2014.[4]