BORON TRIBROMIDE†

Chemical Identification
Chemical Identification
CAS # 10294-33-4
Formula

BBr₃

Synonyms

boron bromide; tribromoborane

Physical Properties
Physical Properties
Physical description Colorless, fuming liquid with a sharp, irritating odor.
Boiling point 194°F Molecular weight 250.5
Freezing point/melting point -51°F Vapor pressure 40 mmHg at 57°F
Flash point Vapor density
Specific gravity 2.64 at 68°F Ionization potential 9.70 eV
Lower explosive limit (LEL) Upper explosive limit (UEL)
NFPA health rating 3 NFPA fire rating 0
NFPA reactivity rating 2 NFPA special instruction W: Reacts violently or explosively with water
Vapor hazard ratio (VHR)
Historical exceedance percentage
Target organs
Monitoring Methods Used by OSHA
Monitoring Methods Used by OSHA
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 Method
Wipe Method
Sampler/Sampling media
Bulk Method
Bulk Method
On-Site Screening Techniques
On-Site Screening Techniques
Device
Model/Type
Sampling information
(see manufacturer instructions)
Exposure Limits
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
CAL/OSHA PEL
8-hour TWA
(ST) STEL
(C) Ceiling
Peak
PEL-TWA REL-TWA TLV-TWA PEL-TWA
PEL-STEL REL-STEL TLV-STEL PEL-STEL
PEL-C

1 ppm (10 mg/m³) [Construction and Maritime Industries only]

REL-C

1 ppm (10 mg/m³)

TLV-C

0.7 ppm [2015]

PEL-C

1 ppm (10 mg/m³)

Skin notation

N

Skin notation

N

Skin notation

N

Skin notation

N

Notes:

No General Industry PEL established. See 29 CFR 1926.55 Appendix A and 29 CFR 1915.1000 Table Z-Shipyards.

Notes: Notes: Notes:
Health factors:  See NIH-NLM PubChem. IDLH
Carcinogenic classifications: Notes:
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:
Additional Resources and Literature References
Additional Resources and Literature References

NOAA: CAMEO Chemicals - Boron tribromide

NIOSH: Pocket Guide to Chemical Hazards - Boron tribromide

Literature References

  • ACGIH: Documentation of the Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) - Boron tribromide. See annual publication for most recent information.

Last Updated Date : 12/18/2020