NIOSH Pocket Guide to Chemical Hazards


CAS 87-68-3


RTECS EJ0700000
Synonyms & Trade Names
HCBD; Hexachloro-1,3-butadiene; 1,3-Hexachlorobutadiene; Perchlorobutadiene
DOT ID & Guide
2279 151


NIOSH REL: Ca TWA 0.02 ppm (0.24 mg/m3) [skin] See Appendix A
OSHA PEL†: none
IDLH Ca [N.D.] See: IDLH INDEX Conversion 1 ppm = 10.66 mg/m3
Physical Description
Clear, colorless liquid with a mild, turpentine-like odor.
MW: 260.7
BP: 419°F
FRZ: -6°F
Sol: Insoluble
VP: 0.2 mmHg
IP: ?

Sp.Gr: 1.55
Fl.P: ?
UEL: ?
LEL: ?

Combustible Liquid
Incompatibilities & Reactivities
Measurement Methods
NIOSH 2543
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
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 In animals: irritation eyes, skin, respiratory system; kidney damage; [potential occupational carcinogen]
Target Organs Eyes, skin, respiratory system, kidneys

Cancer Site [in animals: kidney tumors]
See also: INTRODUCTION   See ICSC CARD: 0896