NIOSH Publication No. 2005-151:

NIOSH Pocket Guide to Chemical Hazards

September 2005

Boron tribromide

CAS
10294-33-4

BBr3

RTECS
ED7400000
Synonyms & Trade Names

Boron bromide, Tribromoborane
DOT ID & Guide
2692 / 157

Exposure
Limits

NIOSH REL: C 1 ppm (10 mg/m3)
OSHA PEL: none
IDLH
N.D. See: IDLH INDEX
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
UEL: NA
LEL: 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
See: NMAM or OSHA Methods
Personal Protection & Sanitation
(See protection)
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
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
See also: INTRODUCTION   See ICSC CARD: 0230