1,1,2,2-Tetrachloroethane |
Synonyms & Trade Names Acetylene tetrachloride, Symmetrical tetrachloroethane |
CAS No. 79-34-5 |
RTECS No. KI8575000 |
DOT ID & Guide 1702 151 |
FormulaCHCl2CHCl2 |
Conversion 1 ppm = 6.87 mg/m3 |
IDLH Ca [100 ppm]
See: 79345 |
Exposure 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] |
Measurement Methods
NIOSH 1019 , 2562;
OSHA 7
See: NMAM or OSHA Methods |
Physical Description Colorless to pale-yellow liquid with a pungent, chloroform-like odor. |
MW: 167.9 |
BP: 296°F |
FRZ: -33°F |
Sol: 0.3% |
VP: 5 mmHg |
IP: 11.10 eV |
| Sp.Gr(77°F): 1.59 |
Fl.P: NA |
UEL: NA |
LEL: NA |
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| 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 contact |
Symptoms 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 tract |
Cancer 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
Important additional information about respirator selection |
| See also: INTRODUCTION See ICSC CARD: 0332 See MEDICAL TESTS: 0222 |
