Chinese Japanese Germany Korea

Boron tribromide

General Description Physical and Chemical Properties Boron trichloride Toxicity Uses Production method
Boron tribromide
Boron tribromide structure
Chemical Name:
Boron tribromide
BBr3;Tronite;Bortribromid;BORON BROMIDE;tribromoboron;tribromoborane;tribromo-boran;tribromo-Boron;Boron,tribromo-;Borane,tribromo-
Molecular Formula:
Formula Weight:
MOL File:

Boron tribromide Properties

Melting point:
−46 °C(lit.)
Boiling point:
~90 °C
2.60 g/mL at 20 °C(lit.)
vapor density 
8.6 (vs air)
vapor pressure 
40 mm Hg ( 14 °C)
Flash point:
30 °F
refractive index 
storage temp. 
Poison room
Miscible with ethanol and carbon tetrachloride.
Specific Gravity
Water Solubility 
Reacts with water.
Moisture Sensitive
Stable, but reacts violently with water.
CAS DataBase Reference
10294-33-4(CAS DataBase Reference)
EWG's Food Scores
EPA Substance Registry System
Boron tribromide (10294-33-4)
  • Risk and Safety Statements
Signal word  Danger
Hazard statements  H225-H300+H330-H304-H314-H336-H361f-H373-H411-H410-H335-H351-H300-H318-H330-H400
Precautionary statements  P210-P260-P280-P301+P310-P301+P310+P330-P303+P361+P353-P304+P340+P310-P305+P351+P338-P331-P403+P233-P264-P273-P284-P301+P310a-P304+P340-P320-P405-P501a
Hazard Codes  T+,C,F,N
Risk Statements  14-26/28-35-40-62-11-67-65-50/53-37-51/53-48/20
Safety Statements  9-26-28-36/37/39-45-23-33-16-62-61-60
RIDADR  UN 3390 6.1/PG 1
WGK Germany  3
RTECS  ED7400000
HazardClass  8
PackingGroup  I
HS Code  28129090
NFPA 704
3 2

Boron tribromide price More Price(31)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 202207 Boron tribromide 99.9% 10294-33-4 25g $57.8 2021-03-22 Buy
Sigma-Aldrich 202207 Boron tribromide 99.9% 10294-33-4 2kg $1690 2021-03-22 Buy
Alfa Aesar L14880 Boron tribromide, 1M soln. in dichloromethane 10294-33-4 25ml $52 2021-03-22 Buy
Alfa Aesar H32785 Boron tribromide 1M soln. in heptane 10294-33-4 100ml $106 2021-03-22 Buy
Alfa Aesar L14880 Boron tribromide, 1M soln. in dichloromethane 10294-33-4 100ml $135 2021-03-22 Buy

Boron tribromide Chemical Properties,Uses,Production

General Description

Boron tribromide is commercially available and is a strong Lewis acid. It is an excellent demethylating or dealkylating agent for ethers, often in the production of pharmaceuticals.
boron tribromide lewis structure
boron tribromide lewis structure
Additionally, it also finds applications in olefin polymerisation and in Friedel–Crafts chemistry as a Lewis acid catalyst. The electronics industry uses boron tribromide as a boron source in pre-deposition processes for doping in the manufacture of semiconductors. Boron tribromide is a colourless, fuming liquid compound containing boron and bromine. It is usually made by heating boron trioxide with carbon in the presence of bromine: this generates free boron that reacts vigorously with the bromine. Boron tribromide is used extensively in industries associated with pharmaceutical manufacturing, image processing, semiconductor doping, plasma etching, and photovoltaic manufacturing and as a reagent for different chemical processes.

Physical and Chemical Properties

Fuming colorless viscous liquid with a strong irritant, toxic. Melting point is-46 ℃, the boiling point is 91.3 ℃. It was dissolved in carbon tetrachloride. Easily decomposed by water, alcohol. light or thermal decomposition, heated to explode. It can react with the phosphorus, nitrogen, oxygen, sulfur, halogens, ammonia, alkali, phosphorus halides, phosphines, and many substituents of ammonia. A strong corrosive. Strong irritative to Skin, eye or mucous membrane. Approximate toxicity of hydrogen bromide. United States provides operating maximum allowable concentration of boron tribromide in environment Air is 1ppm (10mg/m3). It is obtained in laboratory by Aluminum tribromide reacting with boron trifluoride, then distillation. can be used as a source of doped semiconductor silicon, but also for the preparation of high purity boron and organic boride.
Other related chemical reactions involved by boron tribromide:
In hydroiodic, at 300~400 ℃ continuously fed in boron tribromide, obtained mixture of BIBr2 and BI2Br, BI3, and then separated by distillation, derived dibromo iodide boron.
Boron tribromide reacts with adamantine, generates 1-bromo-adamantane.
The above information is edited by the chemicalbook of Yan Yanyong.

Boron trichloride

Boron trifluoride, boron trichloride, boron tribromide and boron triiodide are four kinds of common boron halides, the last three kinds of halogenated boron can be made in the presence of carbonaceous reducing agent by the high-temperature oxidation reduction of halogens and diboron trioxide, the reaction equation is as follows: B2O3 + 3C + 3Cl2 = 2BCl3 + 3CO, boron trifluoride is obtained by interaction of hydrogen fluoride (fluorspar with concentrated sulfuric acid) and diboron trioxide. Boron halide are all covalent molecules, in the vapor state existing in a planar triangles single molecule. Boron atoms using sp2 hybrid orbitals, p orbital of boron atoms filled of electron in the vertical plane perpendicular to the empty p orbital plane of a halogen atom can form large π bond π64. Experimental results show that the measured bond length (such as B-Cl bond length is 173pm) is shorter than a single bond (single bond B-Cl bond length is 187pm), indicating the presence of large π bond. The melting points of all these four kinds of halides are low, boron trifluoride is the lowest, and the boiling point increases with the increase of atomic number of halogen, indicating four kinds of halide are covalent halide molecules, intermolecular attraction is van der Waals forces. In 4 kinds of halides, stability is declined from boron trifluoride in turn to boron triiodide. Boron halides are easily hydrolyzed to produce boric acid.


Boron tribromide has a strong stimulating effect on human tissue, and its vapor is highly toxic, strong corrosive. Wear masks, gloves and protective clothing during operation. Steam inhalation is strictly prohibited. Immediately sent to hospital for treatment after poisoning.


as the major chemical raw material of the production of caustic soda, soda ash, widely used in alkali industry.
As a semiconductor silicon doping source, it can be used for preparation of high purity boron and organic boron compound.
Trona is mainly used for making soda ash, caustic soda, soda, and other products. Soda ash is an important industrial raw material, widely used in glass, chemicals, light industry, textile, dyeing, metallurgy, petroleum processing, pharmaceuticals, food and so on. Caustic soda is mainly used for rayon, paper, dyes, soap, plastics, pharmaceuticals, agricultural chemicals and so on. Baking soda is mainly used in food, plastics, rubber, pharmaceutical, printing and dyeing, tanning, soaking seeds and other areas.
As a dopant materials of semiconductor, catalyst, intermediate and brominated agent of organic synthesis, It is a raw material for producing high purity boron and other organic boron compound.
Used in organic synthesis and preparation for high purity boron.
As catalyst, intermediates and Brominating agents for organic synthesis, raw materials for manufacturing high purity boron and other organic boron compound.

Production method

Direct synthesis is putting the dried powder of boron into the reaction tube of a tubular reactor, to make the reaction can be carried out sufficiently, a certain amount of filler should be placed in the reaction tube, the filler material is the same as the inner wall of the reaction tube. The reaction tube was heated to 850 ℃, also bromine in the bromine vessel was heated to a boil, then poured into reaction tube. The boron tribromide liquid produced with activated carbon, zinc and aluminum scrap together in debromination vessel heated to reflux until boron bromide produced is a colorless, and then by crude distillation, distillation, obtained completely colorless bromide boron products. 2B + 3Br2 → 2BBr3
Salt Lake alkaline mineral general uses open-pit mining, ancient alkaline mineral general uses underground dissolution mining law. Mining process
1. open-pit mining 2. underground dissolution method

Chemical Properties

clear to amber liquid with a pungent odour

Chemical Properties

Boron tribromide is a colorless, fuming liquid.


Boron Tribromide is used as a reagent in the synthesis of 8-hydroxyquinolato compounds used as electron transport materials in EL devices. It is also used in the demethylation of aryl methyl ethers by boron tribromide.


manufacture of diborane; ultra high purity boron. Reagent for cleavage of ethers, amines, thiols; addition of allenes and alkynes.


Catalyst in manufacture of diborane, ultrahigh-purity boron, and semiconductors

General Description

A colorless, fuming liquid with a pungent odor. Boiling point 194°F. Freezing point -51°F. Very toxic by inhalation. Corrosive to metals and tissue.

Reactivity Profile

Boron tribromide strongly attacks wood and rubber with generation of flammable hydrogen gas. Reacts exothermically and violently with water. Mixing tungsten trioxide and Boron tribromide caused an explosion when the reaction was not cooled in an ice bath.


Corrosive to tissue. May explode when heated. Upper respiratory tract irritant.

Health Hazard

Inhalation causes severe irritation of mucous membranes. Ingestion causes burns of mouth and stomach. Contact with eyes or skin causes severe burns.

Fire Hazard

Special Hazards of Combustion Products: Toxic fumes of the chemical or hydrogen bromide may form in fires.

Potential Exposure

Boron tribromide is highly toxic and corrosive, it is used as a catalyst in organic synthesis, making diborane, high purity boron, and semiconductors.


UN2692 Boron tribromide, Hazard class: 8; Labels: 8—Corrosive materials, 6.1—Poison Inhalation Hazard, Inhalation Hazard Zone B.


Reacts violently and explosively with water, steam, or alcohols, forming toxic, corrosive, and potentially explosive hydrogen bromide gas. Mixtures with potassium or sodium can explode on impact. Incompatible with oxidizers, strong bases. Attacks some metals, rubbers, and plastics.

Boron tribromide Preparation Products And Raw materials

Raw materials

Preparation Products

Boron tribromide Suppliers

Global( 219)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
Springchem New Material Technology Co.,Limited
+8613917661608 +86-021-62885108 China 2065 57
Henan Tianfu Chemical Co.,Ltd.
0371-55170693 CHINA 22607 55
Hangzhou FandaChem Co.,Ltd.
+86-571-56059825 CHINA 8882 55
+86 21 5161 9050/ 5187 7795
+86 21 5161 9052/ 5187 7796 CHINA 26734 60
Hefei TNJ Chemical Industry Co.,Ltd.
86-0551-65418684 18949823763
86-0551-65418684 China 3001 55
City Chemical LLC
203.937.8400 United States 97 58
+86 18953170293
+86 0531-67809011 CHINA 2858 58
Hubei Jusheng Technology Co.,Ltd.
027-59599243 CHINA 28229 58
Xiamen AmoyChem Co., Ltd
+86 592-605 1114 CHINA 6369 58
Hubei xin bonus chemical co. LTD
027-59338440 CHINA 23035 58

Related articles

View Lastest Price from Boron tribromide manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2021-10-21 Boron tribromide
US $10.00-120.00 / KG 1KG >99% 20tons Anhui Rencheng Technology Co., Ltd
2021-07-09 BBr3
US $400.00 / KG 1KG 99.9% 1000 Kilogram/Kilograms per Month Hebei Xibaijie Biotechnology Co., Ltd.

10294-33-4(Boron tribromide)Related Search:

Copyright 2017 © ChemicalBook. All rights reserved