1,1,2-Trichloroethane
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| Template:Longitem | C2H3Cl3 |
| Molar mass | 133.40 g/mol |
| Appearance | colorless liquid[1] |
| Odor | sweet, chloroform-like[1] (in high concentrations) |
| Density | 1.435 g/cm3 |
| Melting point | Template:Chembox CalcTemperatures |
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| Vapor pressure | 19 mmHg (20°C)[1] |
| NFPA 704 (fire diamond) | Template:NFPA 704 diamond |
| Explosive limits | 6–15.5%[1] |
| Template:Longitem | 1,1,1-Trichloroethane; Trichloroethylene |
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1,1,2-Trichloroethane, vinyl trichloride or 1,1,2-TCA, is an organochloride solvent with the molecular formula Template:Chem2 and the structural formula Template:Chem2. 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-dichloroethylene.[4]
Toxicity
1,1,2-Trichloroethane may be harmful by inhalation, ingestion, and skin contact. It is a respiratory and eye irritant. 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.[5]
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.[6]
References
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