1,1,2,2-Tetrachloroethane
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CAS
79-34-5
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CHCl2CHCl2
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RTECS
KI8575000
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Synonyms & Trade Names
Acetylene tetrachloride, Symmetrical tetrachloroethane
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DOT ID & Guide
1702 / 151
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Exposure
Limits
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NIOSH REL: Ca TWA 1 ppm (7 mg/m3) [skin] See Appendix A See Appendix C (Chloroethanes)
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OSHA PEL†: TWA 5 ppm (35 mg/m3) [skin]
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IDLH
Ca [100 ppm]
See: 79345
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Conversion
1 ppm = 6.87 mg/m3
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Physical Description
Colorless to pale-yellow liquid with a pungent, chloroform-like odor.
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MW: 167.9
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BP: 296°F
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FRZ: -33°F
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Sol: 0.3%
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VP: 5 mmHg
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IP: 11.10 eV
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Sp.Gr(77°F): 1.59
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Fl.P: NA
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UEL: NA
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LEL: NA
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Noncombustible Liquid
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Incompatibilities & Reactivities
Chemically-active metals, strong caustics, fuming sulfuric acid [Note: Degrades slowly when exposed to air.]
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Measurement Methods
NIOSH 1019, 2562; OSHA 7
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
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First Aid (See procedures)
Eye: Irrigate immediately
Skin: Soap wash promptly
Breathing: Respiratory support
Swallow: Medical attention immediately
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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
Important additional information about respirator selection
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Exposure Routes
inhalation, skin absorption, ingestion, skin and/or eye contact
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Symptoms
Nausea, vomiting, abdominal pain; tremor fingers; jaundice, hepatitis, liver tenderness; dermatitis; leukocytosis (increased blood leukocytes); kidney damage; [potential occupational carcinogen]
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Target Organs
Skin, liver, kidneys, central nervous system, gastrointestinal tract
Cancer Site
[in animals: liver tumors]
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See also: INTRODUCTION
See ICSC CARD: 0332 See MEDICAL TESTS: 0222
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