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Electronical chemicals

3,3',5,5'-TETRABROMOBIPHENYL

CAS number

16400-50-3

Molecular formula C12H6Br4
Product name 3,3',5,5'-TETRABROMOBIPHENYL
Molecular Structure

Density:2.14 g/cm3

Boiling Point:401.8ºC at 760 mmHg

Flash Point:190.7ºC

Refractive Index:1.666

Vapor Pressure:2.67E-06mmHg at 25°C

3,3',5,5'-Tetrabromobiphenyl


3,3',5,5'-Tetrabromobiphenyl (TBBP) is a halogenated flame retardant used in a variety of products, including plastics, textiles, and electronics. It is an aromatic compound, consisting of two phenyl rings connected by a single bond, with four bromine atoms attached to each ring. TBBP is a white, odorless, crystalline powder with a melting point of 222-224°C and a molecular weight of 747.2 g/mol. 


TBBP is known for its high flame retardant properties, making it an ideal choice for products that require fire safety. It has proven to be effective in reducing the flammability of a wide range of materials, including polystyrene, polyvinyl chloride, polyurethane, and polypropylene. TBBP also has excellent electrical insulation properties and is resistant to heat, chemicals, and water.


TBBP is highly toxic and is classified as a persistent organic pollutant due to its ability to accumulate in the environment. It has been found to be hazardous to aquatic life, with potential effects ranging from decreased growth and reproduction to organ damage. There is also evidence that TBBP can potentially cause endocrine disruption in humans, although the exact mechanism is not yet fully understood.


Due to its toxicity and environmental persistence, the use of TBBP is being phased out in many countries. In the European Union, TBBP is listed as a substance of very high concern and is subject to certain restrictions. The United States has also implemented restrictions on its manufacture and use, and the chemical is now prohibited in children's products.


Despite its potential toxicity and environmental persistence, TBBP remains an important flame retardant for many products. It is an effective flame retardant for a wide range of materials, and its excellent electrical insulation and resistance to heat, chemicals, and water make it an ideal choice for many applications. For those products that require a flame retardant, 3,3',5,5'-Tetrabromobiphenyl may be the best option.


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