NIOSH Pocket Guide to Chemical Hazards


CAS 79-01-6


RTECS KX4550000
Synonyms & Trade Names
Ethylene trichloride, TCE, Trichloroethene, Trilene
DOT ID & Guide
1710 160


NIOSH REL: Ca See Appendix A See Appendix C
OSHA PEL†: TWA 100 ppm C 200 ppm 300 ppm (5-minute maximum peak in any 2 hours)
IDLH Ca [1000 ppm] See: 79016 Conversion 1 ppm = 5.37 mg/m3
Physical Description
Colorless liquid (unless dyed blue) with a chloroform-like odor.
MW: 131.4
BP: 189°F
FRZ: -99°F
Sol(77°F): 0.1%
VP: 58 mmHg
IP: 9.45 eV

Sp.Gr: 1.46
Fl.P: ?
UEL(77°F): 10.5%
LEL(77°F): 8%

Combustible Liquid, but burns with difficulty.
Incompatibilities & Reactivities
Strong caustics & alkalis; chemically-active metals (such as barium, lithium, sodium, magnesium, titanium & beryllium)
Measurement Methods
NIOSH 1022, 3800; OSHA 1001
See: NMAM or OSHA Methods
Personal Protection & Sanitation (See protection)
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
Important additional information about respirator selection
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
(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, skin; headache, visual disturbance, lassitude (weakness, exhaustion), dizziness, tremor, drowsiness, nausea, vomiting; dermatitis; cardiac arrhythmias, paresthesia; liver injury; [potential occupational carcinogen]
Target Organs Eyes, skin, respiratory system, heart, liver, kidneys, central nervous system

Cancer Site [in animals: liver & kidney cancer]
See also: INTRODUCTION   See ICSC CARD: 0081   See MEDICAL TESTS: 0236