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Boron tribromide

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Synonyms & Trade Names
Boron bromide, Tribromoborane
CAS No.
10294-33-4
RTECS No.
ED7400000
DOT ID & Guide
2692 157
Formula
BBr₃
Conversion
1 ppm = 10.25 mg/m3
IDLH
N.D.
See: IDLH INDEX
Exposure Limits
NIOSH REL
C 1 ppm (10 mg/m3)
OSHA PEL
none See Appendix G
Measurement Methods
None available
See: NMAM or OSHA Methods
Physical Description
Colorless, fuming liquid with a sharp, irritating odor.
Molecular Weight
250.5
Boiling Point
194°F
Freezing Point
-51°F
Solubility
Decomposes
Vapor Pressure
(57°F): 40 mmHg
Ionization Potential
9.70 eV
Specific Gravity
(65°F): 2.64
Flash Point
NA
Upper Explosive Limit
NA
Lower Explosive Limit
NA
Noncombustible Liquid
Incompatibilities & Reactivities
Moisture, water, heat, potassium, sodium, alcohols [Note: Attacks metals, wood & rubber. Reacts with water to form boric acid and hydrogen bromide.]
Exposure Routes
inhalation, ingestion, skin and/or eye contact
Symptoms
irritation eyes, skin, respiratory system; eye, skin burns; dyspnea (breathing difficulty), pulmonary edema
Target Organs
Eyes, skin, respiratory system
Personal Protection/Sanitation
(See protection codes)
Skin:Prevent skin contact
Eyes:Prevent eye contact
Wash skin:When contaminated
Remove:When wet or contaminated
Change:No recommendation
Provide:Eyewash, Quick drench
First Aid
(See procedures)
Eye:Irrigate immediately
Skin:Water flush immediately
Breathing:Respiratory support
Swallow:Medical attention immediately
Respirator Recommendations

Not available.

Important additional information about respirator selection

See also
INTRODUCTION   ICSC CARD: 0230
Page last reviewed: October 30, 2019
Content source: National Institute for Occupational Safety and Health