# NIOSH Pocket Guide to Chemical Hazards
Hexachloroethane | CAS 67-72-1
Cl3CCCl3 | RTECS KI4025000
Synonyms & Trade Names Carbon hexachloride, Ethane hexachloride, Perchloroethane | DOT ID & Guide 9037 151
Exposure Limits | 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] | 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 | UEL: NA | LEL: NA |
Noncombustible Solid
Incompatibilities & Reactivities Alkalis; metals such as zinc, cadmium, aluminum, hot iron & mercury
Measurement Methods NIOSH 1003; OSHA 7
Personal Protection & Sanitation 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
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
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