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HEXACHLOROBENZENE
| CAS # | 118-74-1 |
|---|---|
| Formula |
C₆Cl₆ |
| Synonyms |
HCB; perchlorobenzene; pentachlorophenylchloride; phenyl perchloryl |
| Physical description | A white crystalline substance. | ||
|---|---|---|---|
| Boiling point | 612°F | Molecular weight | 284.78 |
| Freezing point/melting point | 441-444°F | Vapor pressure | 1 mmHg at 237.9°F |
| Flash point | 468°F | Vapor density | 9.8 |
| Specific gravity | 2.044 at 75.2°F | Ionization potential | |
| Lower explosive limit (LEL) | Upper explosive limit (UEL) | ||
| NFPA health rating | 1 | NFPA fire rating | 1 |
| NFPA reactivity rating | 0 | NFPA special instruction | |
| Vapor hazard ratio (VHR) | |||
| Historical exceedance percentage | |||
| Target organs | |||
| Analyte code (IMIS no.) | |||
|---|---|---|---|
| Sampling group | |||
| Sampler/Sampling media | |||
| Sampling time* | |||
| Sampling volume (TWA)* | |||
| Sampling flow rate (TWA)* | |||
| Sampling volume (STEL/Peak/C)* | |||
| Sampling flow rate (STEL/Peak/C)* | |||
| Analytical method instruments | |||
| Method reference | |||
| 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 Sampler/Sampling media |
|
|---|---|
| Bulk Method |
|
| Device | |||||
|---|---|---|---|---|---|
| Model/Type | |||||
|
Sampling information (see manufacturer instructions) |
|
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 |
|
TLV-TWA |
0.002 mg/m³ [1994] |
PEL-TWA |
0.002 mg/m³ |
| PEL-STEL |
|
REL-STEL |
|
TLV-STEL |
|
PEL-STEL |
|
| PEL-C |
|
REL-C |
|
TLV-C |
|
PEL-C |
|
| Skin notation |
NA |
Skin notation |
NA |
Skin notation |
Y |
Skin notation |
Y |
|
Notes:
Not established |
Notes:
Not established |
Notes:
|
Notes:
|
||||
| Health factors: See NIH-NLM PubChem. | IDLH | ||||||
| Carcinogenic classifications: IARC-2B, NTP-R, TLV-A3, EPA-B2 |
Notes:
|
||||||
|
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:
|
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Additional Resources and Literature References
|
NOAA: CAMEO Chemicals - Hexachlorobenzene NIOSH: Pocket Guide to Chemical Hazards - Hexachlorobenzene Literature References
|
Last Updated Date : 12/31/2020