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Hexachlorobutadiene

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Synonyms & Trade Names
HCBD, Hexachloro-1,3-butadiene, 1,3-Hexachlorobutadiene, Perchlorobutadiene
CAS No.
87-68-3
RTECS No.
EJ0700000
DOT ID & Guide
2279 151
Formula
Cl₂C=CClCCl=CCl₂
Conversion
1 ppm = 10.66 mg/m3
IDLH
Ca [N.D.]
See: IDLH INDEX
Exposure Limits
NIOSH REL
Ca TWA 0.02 ppm (0.24 mg/m3) [skin] See Appendix A
OSHA PEL
none See Appendix G
Measurement Methods
NIOSH 2543
See: NMAM or OSHA Methods
Physical Description
Clear, colorless liquid with a mild, turpentine-like odor.
Molecular Weight
260.7
Boiling Point
419°F
Freezing Point
-6°F
Solubility
Insoluble
Vapor Pressure
0.2 mmHg
Ionization Potential
?
Specific Gravity
1.55
Flash Point
?
Upper Explosive Limit
?
Lower Explosive Limit
?
Combustible Liquid
Incompatibilities & Reactivities
Oxidizers
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]
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 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

Important additional information about respirator selection

See also
INTRODUCTION   ICSC CARD: 0896
Page last reviewed: October 30, 2019
Content source: National Institute for Occupational Safety and Health