# NIOSH Pocket Guide to Chemical Hazards
1,1,2-Trichloroethane | CAS 79-00-5
CHCl2CH2Cl | RTECS KJ3150000
Synonyms & Trade Names Ethane trichloride, beta-Trichloroethane, Vinyl trichloride | DOT ID & Guide
Exposure Limits | NIOSH REL: Ca TWA 10 ppm (45 mg/m3) [skin] See Appendix A See Appendix C (Chloroethanes)
OSHA PEL: TWA 10 ppm (45 mg/m3) [skin]
IDLH Ca [100 ppm] | Conversion 1 ppm = 5.46 mg/m3
Physical Description Colorless liquid with a sweet, chloroform-like odor.
MW: 133.4 | BP: 237°F | FRZ: -34°F | Sol: 0.4%
VP: 19 mmHg | IP: 11.00 eV |  | Sp.Gr: 1.44
Fl.P: ? | UEL: 15.5% | LEL: 6% |
Combustible Liquid, forms dense soot.
Incompatibilities & Reactivities Strong oxidizers & caustics; chemically-active metals (such as aluminum, magnesium powders, sodium & potassium)
Measurement Methods NIOSH 1003; OSHA 11
Personal Protection & Sanitation Skin: Prevent skin contact Eyes: Prevent eye contact Wash skin: When contaminated Remove: When wet or contaminated Change: No recommendation Provide: Eyewash, Quick drench | First Aid (See procedures) Eye: Irrigate immediately Skin: Soap wash promptly Breathing: Respiratory support Swallow: Medical attention immediately
Respirator Recommendations NIOSH At concentrations above the NIOSH REL, or where there is no REL, at any detectable concentration: (APF = 10,000) Any self-contained breathing apparatus that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode/(APF = 10,000) Any supplied-air respirator that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode in combination with an auxiliary self-contained positive-pressure breathing apparatus Escape: (APF = 50) Any air-purifying, full-facepiece respirator (gas mask) with a chin-style, front- or back-mounted organic vapor canister/Any appropriate escape-type, self-contained breathing apparatus
Exposure Routes inhalation, skin absorption, ingestion, skin and/or eye contact
Symptoms Irritation eyes, nose; central nervous system depression; liver, kidney damage; dermatitis; [potential occupational carcinogen]
Target Organs Eyes, respiratory system, central nervous system, liver, kidneys Cancer Site [in animals: liver cancer]
See also: INTRODUCTION