HEXACHLOROBUTADIENE
| Chemical Identification | |
|---|---|
| CAS # | 87-68-3 |
| Formula |
C₄Cl₆ |
| Synonyms |
HCBD; hexachloro-1,3-butadiene; 1,3-hexachlorobutadiene; perchlorobutadiene |
| Physical Properties | |||
|---|---|---|---|
| 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 | |||
| Monitoring Methods Used by OSHA | ||||||
|---|---|---|---|---|---|---|
| Analyte code (IMIS no.) | H109 | |||||
| Sampling group | ||||||
| Sampler/Sampling media | XAD-2 tube (100/50 mg) [SKC 226-30-04] | |||||
| Sampling time* |
|
|||||
| Sampling volume (TWA)* |
1-100 L |
|||||
| Sampling flow rate (TWA)* |
0.05-0.2 L/min |
|||||
| Sampling volume (STEL/Peak/C)* |
|
|||||
| Sampling flow rate (STEL/Peak/C)* |
|
|||||
| Analytical method instruments | GC-ECD | |||||
| Method reference | NIOSH 2543 (fully validated) | |||||
| Notes |
|
|||||
| Special requirements |
|
|||||
* 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.
| Wipe Method | |
|---|---|
| Sampler/Sampling media |
|
| Bulk Method |
|---|
|
|
| On-Site Screening Techniques | ||||||
|---|---|---|---|---|---|---|
| Device | ||||||
| Model/Type | ||||||
|
Sampling information (see manufacturer instructions) |
||||||
| Exposure Limits | |||||||
|---|---|---|---|---|---|---|---|
|
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 |
|||||
| 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 |
|
REL-STEL |
|
TLV-STEL |
|
PEL-STEL |
|
| PEL-C |
|
REL-C |
|
TLV-C |
|
PEL-C |
|
| 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:
|
Notes:
|
||||
| Health factors: See NIH-NLM PubChem. | IDLH | ||||||
| Carcinogenic classifications: IARC-3, NIOSH-Ca, TLV-A3, EPA-C |
Notes:
Ca |
||||||
|
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:
1 ppm/3 ppm/10 ppm |
|||||||
| Additional Resources and Literature References |
|---|
|
NOAA: CAMEO Chemicals - Hexachlorobutadiene NIOSH: Pocket Guide to Chemical Hazards - Hexachlorobutadiene Literature References
|
Last Updated Date : 12/31/2020