HEXACHLOROBUTADIENE
| CAS # | 87-68-3 |
|---|---|
| Formula |
C₄Cl₆ |
| Synonyms |
HCBD; hexachloro-1,3-butadiene; 1,3-hexachlorobutadiene; perchlorobutadiene |
| Physical description | Clear, colorless liquid with a mild, turpentine-like odor. | ||
|---|---|---|---|
| Boiling point | 419°F | Molecular weight | 260.76 |
| Freezing point/melting point | -6°F | Vapor pressure | 0.2 mmHg |
| Flash point | Vapor density | 8.99 | |
| Specific gravity | 1.675 | Ionization potential | |
| Lower explosive limit (LEL) | Upper explosive limit (UEL) | ||
| NFPA health rating | 3 | NFPA fire rating | 1 |
| NFPA reactivity rating | 0 | NFPA special instruction | |
| Vapor hazard ratio (VHR) | |||
| Historical exceedance percentage | |||
| Target organs | |||
| Analyte code (IMIS no.) | H109 | ||
|---|---|---|---|
| Sampling group | |||
| Sampler/Sampling media | XAD-2 tube (100/50 mg) [SKC 226-30-04] | ||
| Sampling time* |
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| Sampling volume (TWA)* |
1-100 L |
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| Sampling flow rate (TWA)* |
0.05-0.2 L/min |
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| Sampling volume (STEL/Peak/C)* |
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| Sampling flow rate (STEL/Peak/C)* |
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| Analytical method instruments | GC-ECD | ||
| Method reference | NIOSH 2543 (fully validated) | ||
| Notes |
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| Special requirements |
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* All sampling instructions above are recommended guidelines for OSHA Compliance Safety and Health Officers (CSHOs), please see the corresponding OSHA method reference for complete details.
| Sampler/Sampling media |
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| Bulk Method |
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| Device | |||||
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| Model/Type | |||||
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Sampling information (see manufacturer instructions) |
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OSHA PEL
8-hour TWA (ST) STEL (C) Ceiling Peak |
NIOSH REL
Up to 10-hour TWA (ST) STEL (C) Ceiling |
ACGIH TLV©
8-hour TWA (ST) STEL (C) Ceiling |
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|---|---|---|---|---|---|---|---|
| PEL-TWA |
|
REL-TWA |
0.02 ppm (0.24 mg/m³) |
TLV-TWA |
0.02 ppm [1979] |
PEL-TWA |
0.02 ppm (0.24 mg/m³) |
| PEL-STEL |
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REL-STEL |
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TLV-STEL |
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PEL-STEL |
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| PEL-C |
|
REL-C |
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TLV-C |
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PEL-C |
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| Skin notation |
NA |
Skin notation |
Y |
Skin notation |
Y |
Skin notation |
Y |
|
Notes:
Not established |
Notes:
CARCINOGEN (Ca): REDUCE EXPOSURE TO LOWEST FEASIBLE CONCENTRATION. See Appendix A, NIOSH Potential Occupational Carcinogens. |
Notes:
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Notes:
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| Health factors: See NIH-NLM PubChem. | IDLH | ||||||
| Carcinogenic classifications: IARC-3, NIOSH-Ca, TLV-A3, EPA-C |
Notes:
Ca |
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AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:
1 ppm/3 ppm/10 ppm |
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Additional Resources and Literature References |
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NOAA: CAMEO Chemicals - Hexachlorobutadiene NIOSH: Pocket Guide to Chemical Hazards - Hexachlorobutadiene Literature References
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Last Updated Date : 12/31/2020