1,1,1-Trichloroethane
Title: 1,1,1-Trichloroethane
CAS Registry Number: 71-55-6
Additional Names: Methylchloroform
Trademarks: Chlorothene (Dow)
Molecular Formula: C2H3Cl3
Molecular Weight: 133.40
Percent Composition: C 18.01%, H 2.27%, Cl 79.73%
Line Formula: CH3CCl3
Literature References: Prepd by the action of chlorine on 1,1-dichloroethane: Sutton, Proc. Roy. Soc. A133, 673 (1931); by the catalytic addition of HCl to 1,1-dichloroethylene: DE 523436 (1931); US 2209000 (Nutting, Huscher, 1940). Review of mfg processes: Faith, Keyes & Clark's Industrial Chemicals, F. A. Lowenheim, M. K. Moran, Eds. (Wiley-Interscience, New York, 4th ed., 1975) pp 836-843; of toxicology and human exposure: Toxicological Profile for 1,1,1-Trichloroethane (PB95-264396, 1995) 307 pp.
Properties: Liquid; sweet sharp odor. Nonflammable. mp -32.5°. d420 1.3376. bp760 74.1°. nD20 1.43838. Insol in water. Absorbs some water. Sol in acetone, benzene, carbon tetrachloride, methanol, ether.
Melting point: mp -32.5°
Boiling point: bp760 74.1°
Index of refraction: nD20 1.43838
Density: d420 1.3376
CAUTION: Potential symptoms of overexposure are irritation of eyes and skin; headache, lassitude, CNS depression, poor equilibrium; dermatitis; cardiac arrhythmias; liver damage. See NIOSH Pocket Guide to Chemical Hazards (DHHS/NIOSH 97-140, 1997) p 202.
Use: Solvent for adhesives, in cold type metal cleaning, in cleaning plastic molds.

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