NIOSH Pocket Guide to Chemical Hazards


CAS 67-72-1


RTECS KI4025000
Synonyms & Trade Names
Carbon hexachloride, Ethane hexachloride, Perchloroethane
DOT ID & Guide


NIOSH REL: Ca TWA 1 ppm (10 mg/m3) [skin] See Appendix A See Appendix C (Chloroethanes)
OSHA PEL: TWA 1 ppm (10 mg/m3) [skin]
IDLH Ca [300 ppm] See: 67721 Conversion 1 ppm = 9.68 mg/m3
Physical Description
Colorless crystals with a camphor-like odor.
MW: 236.7
BP: Sublimes
MLT: 368°F (Sublimes)
Sol(72°F): 0.005%
VP: 0.2 mmHg
IP: 11.22 eV

Sp.Gr: 2.09
Fl.P: NA

Noncombustible Solid
Incompatibilities & Reactivities
Alkalis; metals such as zinc, cadmium, aluminum, hot iron & mercury
Measurement Methods
NIOSH 1003; OSHA 7
See: NMAM or OSHA Methods
Personal Protection & Sanitation (See protection)
Skin: Prevent skin contact
Eyes: Prevent eye contact
Wash skin: When contaminated/Daily
Remove: When wet or contaminated
Change: Daily
Provide: Eyewash, Quick drench
First Aid (See procedures)
Eye: Irrigate immediately
Skin: Soap wash immediately
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, mucous membrane; in animals: kidney damage; [potential occupational carcinogen]
Target Organs Eyes, skin, respiratory system, kidneys

Cancer Site [in animals: liver cancer]
See also: INTRODUCTION   See ICSC CARD: 0051