1,1,2,2-Tetrachloroethane
Synonyms & Trade Names
Acetylene tetrachloride, Symmetrical tetrachloroethaneExposure Limits
NIOSH REL
Ca TWA 1 ppm (7 mg/m3) [skin] See Appendix A See Appendix C (Chloroethanes)OSHA PEL
TWA 5 ppm (35 mg/m3) [skin] See Appendix GPhysical Description
Colorless to pale-yellow liquid with a pungent, chloroform-like odor.Molecular Weight
167.9Boiling Point
296°FFreezing Point
-33°FSolubility
0.3%Vapor Pressure
5 mmHgIonization Potential
11.10 eVSpecific Gravity
(77°F): 1.59Flash Point
NAUpper Exposive Limit
NALower Explosive Limit
NA
Noncombustible Liquid
Incompatibilities & Reactivities
Chemically-active metals, strong caustics, fuming sulfuric acid [Note: Degrades slowly when exposed to air.]Exposure Routes
inhalation, skin absorption, ingestion, skin and/or eye contactSymptoms
nausea, vomiting, abdominal pain; tremor fingers; jaundice, hepatitis, liver tenderness; dermatitis; leukocytosis (increased blood leukocytes); kidney damage; [potential occupational carcinogen]Target Organs
Skin, liver, kidneys, central nervous system, gastrointestinal tractCancer Site
[in animals: liver tumors]Personal Protection/Sanitation
(See protection codes)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
- Page last reviewed:April 11, 2016
- Page last updated:April 11, 2016
- Content source:
- National Institute for Occupational Safety and Health (NIOSH) Education and Information Division