BORON TRIBROMIDE

BORON TRIBROMIDE
PRODUCT IDENTIFICATION
CAS NO.	5967-37-3; 10294-33-4
EINECS NO.	233-657-9
FORMULA	BBr₃
MOL WT.	250.54
H.S. CODE
TOXICITY
SYNONYMS	Boron bromide; Tribromoborane; Tribromoboron;
SMILES
CLASSIFICATION
PHYSICAL AND CHEMICAL PROPERTIES
PHYSICAL STATE	clear liquid
MELTING POINT	-46.3 C
BOILING POINT	91.3 C
SPECIFIC GRAVITY	1.46
SOLUBILITY IN WATER	reacts (soluble in Hydrocarbons, CCl₄, CH₂Cl₂, SiCl₂)
pH
VAPOR DENSITY
AUTOIGNITION
NFPA RATINGS
REFRACTIVE INDEX
FLASH POINT
STABILITY	Stable under ordinary conditions.
GENERAL DESCRIPTION & APPLICATIONS
Boron tribromide, BBr₃is very volatile and reacts vigorously with water in air to form boric acid and hydrogen bromide. It is commercially prepared from boron oxide with carbon generates free boron which reacts vigorously with the bromine. This compound has commercial application as a strong Lewis acid, An electrophile or electron acceptor. Some common Lewis acids include aluminium chloride, iron chloride, boron trifluoride, niobium pentachloride and the lanthanide triflates. In chemical synthesis, Boron Ttribromide is an excellent demethylating or dealkylating agent for ethers and find application as a catalyst polymerization process and in Friedel-Crafts chemistry. Boron tribromide is used as a source of boron in pre-deposition processes for doping in the manufacture of semi-conductors.
SALES SPECIFICATION
APPEARANCE	clear liquid
ASSAY	99.5.0% min
FREE BROMINE	0.5% max
TRANSPORTATION
PACKING
HAZARD CLASS	8 (Packing Group: I)
UN NO.	2692
OTHER INFORMATION
`Hazard Symbols: T+ C , Risk Phrases: 14-26/28-35-40`, `Safety Phrases: 23-26--28A-36/`37/39-45-9