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Title: 1,1,2-Trichloroethane  
Author: World Heritage Encyclopedia
Language: English
Subject: Trichloroethane, Chloroalkanes, Electrical resistance heating remediation, 1,1-Dichloroethene, Trichloroethylene
Publisher: World Heritage Encyclopedia


CAS number  YesY
ChemSpider  YesY
Jmol-3D images Image 1
Image 2
Molecular formula C2H3Cl3
Molar mass 133.40 g/mol
Density 1.435 g/cm3
Melting point −37 °C (−35 °F; 236 K)
Boiling point 110 to 115 °C (230 to 239 °F; 383 to 388 K)
NFPA 704
Related compounds
Related compounds 1,1,1-Trichloroethane; Trichloroethylene
Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
 YesY   YesY/N?)

1,1,2-Trichloroethane, or 1,1,2-TCA, is an solvents. It is an isomer of 1,1,1-trichloroethane.

It is used as a solvent and as an intermediate in the synthesis of 1,1-dichloroethane.

1,1,2-TCA is a central nervous system depressant and inhalation of vapors may cause dizziness, drowsiness, headache, nausea, shortness of breath, unconsciousness, or cancer.


Trichloroethane may be harmful by inhalation, ingestion and skin contact. It is a respiratory and eye irritant. Although no definitive studies currently exist, trichlorethane should be treated as a potential carcinogen since laboratory evidence suggests that low molecular weight chlorinated hydrocarbons may be carcinogenic.[1]

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.[2] It is considered to be a potential occupational carcinogen.


  1. ^ "Safety (MSDS) data for 1,1,2-trichloroethane". 
  2. ^ CDC - NIOSH Pocket Guide to Chemical Hazards

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