BENZOYL PEROXIDE†
| CAS # | 94-36-0 |
|---|---|
| Formula |
C₁₄H₁₀O₄ |
| Synonyms |
benzoperoxide; dibenzoyl peroxide |
| Physical description | Colorless to white crystals or a granular powder with a faint, benzaldehyde-like odor. | ||
|---|---|---|---|
| Boiling point | decomposes explosively | Molecular weight | 242.2 |
| Freezing point/melting point | 217°F | Vapor pressure | <1 mmHg |
| Flash point | 176°F | Vapor density | |
| Specific gravity | 1.33 | Ionization potential | |
| Lower explosive limit (LEL) | Upper explosive limit (UEL) | ||
| NFPA health rating | 1 | NFPA fire rating | 4 |
| NFPA reactivity rating | 4 | NFPA special instruction | |
| Vapor hazard ratio (VHR) | |||
| Historical exceedance percentage | |||
| Target organs | |||
| Analyte code (IMIS no.) | 0335 | ||
|---|---|---|---|
| Sampling group | |||
| Sampler/Sampling media | PTFE filter, 1 µm [SKC 225-2705] | ||
| Sampling time* | |||
| Sampling volume (TWA)* | 40 L -400 L |
||
| Sampling flow rate (TWA)* | 1-3 L/min |
||
| Sampling volume (STEL/Peak/C)* | |||
| Sampling flow rate (STEL/Peak/C)* | |||
| Analytical method instruments | HPLC-UV | ||
| Method reference | NIOSH 5009 (OSHA modified) | ||
| Notes | Keep samples refrigerated when not in transit. Ship samples overnight with cold-packs as soon as possible. |
||
| 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 |
5 mg/m³ |
REL-TWA |
5 mg/m³ |
TLV-TWA | PEL-TWA |
5 mg/m³ |
|
| PEL-STEL | REL-STEL | TLV-STEL | PEL-STEL | ||||
| PEL-C | REL-C | TLV-C | PEL-C | ||||
| Skin notation |
N |
Skin notation |
N |
Skin notation |
N |
Skin notation |
N |
| Notes: | Notes: |
Notes:
Visit the ACGIH TLV site for specific data |
Notes: | ||||
| Health factors: See NIH-NLM PubChem. | IDLH |
1500 mg/m³ |
|||||
| Carcinogenic classifications: IARC-3, TLV-A4 | Notes: | ||||||
| AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3: | |||||||
Additional Resources and Literature References
|
NOAA: CAMEO Chemicals - Benzoyl peroxide NIOSH: Pocket Guide to Chemical Hazards - Benzoyl peroxide Literature References
|
Last Updated Date : 04/02/2024