1,1,2-Trichloroethane, or 1,1,2-TCA, is an organochloride solvent with the molecular formula and the structural formula . It is a colourless, sweet-smelling liquid that does not dissolve in water, but is soluble in most organic solvents. It is an isomer of 1,1,1-trichloroethane, and a byproduct of its manufacture.
It is used as a solvent and as an intermediate in the synthesis of 1,1-dichloroethene.
1,1,2-TCA is a central nervous system depressant and inhalation of vapors may cause dizziness, drowsiness, headache, nausea, shortness of breath, and unconsciousness.
Toxicology
Trichloroethane may be harmful by inhalation, ingestion, and skin contact. It is a respiratory and eye irritant.
The Occupational Safety and Health Administration and National Institute for Occupational Safety and Health have set occupational exposure limits to 1,1,2-Trichloroethane at 10 ppm over an eight-hour time-weighted average.