BROMOFORM†
Chemical Identification | |
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CAS # | 75-25-2 |
Formula |
CHBr₃ |
Synonyms |
methyl tribromide; tribromomethane |
Physical Properties | |||
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Physical description | Colorless to yellow liquid with a chloroform-like odor. | ||
Boiling point | 301°F | Molecular weight | 252.8 |
Freezing point/melting point | 47°F | Vapor pressure | 5 mmHg |
Flash point | Vapor density | 8.7 | |
Specific gravity | 2.89 | Ionization potential | 10.48 eV |
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 |
Monitoring Methods Used by OSHA | ||||||
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Analyte code (IMIS no.) | 0400 | |||||
Sampling group | ||||||
Sampler/Sampling media | CSC tube (100/50 mg) [SKC 226-01] | |||||
Sampling time* | ||||||
Sampling volume (TWA)* | 10 L |
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Sampling flow rate (TWA)* | 0.2 L/min |
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Sampling volume (STEL/Peak/C)* | ||||||
Sampling flow rate (STEL/Peak/C)* | ||||||
Analytical method instruments | GC-FID | |||||
Method reference | NIOSH 1003 (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 Method | |
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Sampler/Sampling media | Wipe with charcoal pad, seal in glass vial for shipment. [3M 3500] |
Bulk Method |
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On-Site Screening Techniques | ||||||
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Device | ||||||
Model/Type | ||||||
Sampling information (see manufacturer instructions) |
Exposure Limits | |||||||
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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 |
0.5 ppm (5 mg/m³) |
REL-TWA |
0.5 ppm (5.2 mg/m³) |
TLV-TWA |
0.5 ppm [2008] |
PEL-TWA |
0.5 ppm (5 mg/m³) |
PEL-STEL | REL-STEL | TLV-STEL | PEL-STEL | ||||
PEL-C | REL-C | TLV-C | PEL-C | ||||
Skin notation |
Y |
Skin notation |
Y |
Skin notation |
N |
Skin notation |
Y |
Notes: | Notes: | Notes: | Notes: | ||||
Health factors: See NIH-NLM PubChem. | IDLH |
850 ppm |
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Carcinogenic classifications: EPA-B2, IARC-3, TLV-A3 | Notes: | ||||||
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3: |
Additional Resources and Literature References |
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NOAA: CAMEO Chemicals - Bromoform NIOSH: Pocket Guide to Chemical Hazards - Bromoform Literature References
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Last Updated Date : 12/18/2020