NIOSH Pocket Guide to Chemical Hazards

Boron tribromide CAS 10294-33-4
BBr3 RTECS ED7400000
Synonyms & Trade Names
Boron bromide, Tribromoborane
DOT ID & Guide
2692 157
NIOSH REL: C 1 ppm (10 mg/m3)
OSHA PEL†: none
IDLH N.D. Conversion 1 ppm = 10.25 mg/m3
Physical Description
Colorless, fuming liquid with a sharp, irritating odor.
MW: 250.5
BP: 194°F
FRZ: -51°F
Sol: Decomposes
VP(57°F): 40 mmHg
IP: 9.70 eV

Sp.Gr(65°F): 2.64
Fl.P: 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.]
Measurement Methods
None available
Personal Protection & Sanitation
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 To be added later
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