Lapse in Appropriations
For workplace safety and health, please call 800-321-6742; for mine safety and health, please call 800-746-1553; for Job Corps, please call 800-733-5627 and for Wage and Hour, please call 866-487-9243 (866-4-US-WAGE). This website is currently not being updated due to the suspension of Federal government services. The last update to the site was 10/1/2025. Updates to the site will start again when the Federal government resumes operations.
BENZO(B)FLUORANTHENE
| CAS # | 205-99-2 |
|---|---|
| Formula |
C₂₀H₁₂ |
| Synonyms |
3,4-benzofluoranthene; 2,3-benzofluoranthene; benz(e)acephenanthrylene; B(b)F |
| Physical description | Needles or yellow fluffy powder. | ||
|---|---|---|---|
| Boiling point | Molecular weight | 252.32 | |
| Freezing point/melting point | 325-329°F | Vapor pressure | |
| Flash point | Vapor density | ||
| Specific gravity | Ionization potential | ||
| Lower explosive limit (LEL) | Upper explosive limit (UEL) | ||
| NFPA health rating | NFPA fire rating | ||
| NFPA reactivity rating | NFPA special instruction | ||
| Vapor hazard ratio (VHR) | |||
| Historical exceedance percentage | |||
| Target organs | |||
| Analyte code (IMIS no.) | B200 |
|---|---|
| Sampling group | |
| Sampler/Sampling media | PTFE filter & XAD-2 (100/50 mg) [SKC 225-17A & SKC 226-30-4] |
| Sampling time* | |
| Sampling volume (TWA)* | 200-1000 L |
| Sampling flow rate (TWA)* | 2 L/min |
| Sampling volume (STEL/Peak/C)* | |
| Sampling flow rate (STEL/Peak/C)* | |
| Analytical method instruments | HPLC-UV |
| Method reference | NIOSH 5506 (partially 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 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 |
Exposure by all routes should be carefully controlled to levels as low as possible. [1990] |
PEL-TWA | |||
| PEL-STEL | REL-STEL | TLV-STEL | PEL-STEL | ||||
| PEL-C | REL-C | TLV-C | PEL-C | ||||
| Skin notation |
NA |
Skin notation |
NA |
Skin notation |
N |
Skin notation |
NA |
|
Notes:
Not established |
Notes:
Not established |
Notes: |
Notes:
Not established |
||||
| Health factors: See NIH-NLM PubChem. | IDLH | ||||||
| Carcinogenic classifications: TLV-A2 | Notes: | ||||||
| AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3: | |||||||
Additional Resources and Literature References
|
NOAA: CAMEO Chemicals - Benzo[b]fluoranthene NIOSH: Pocket Guide to Chemical Hazards - Benzo[b]fluoranthene Literature References |
Last Updated Date : 12/17/2020