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Electronical chemicals

4,4'-Dibromobiphenyl

CAS number

92-86-4

Molecular formula C12H8Br2
Product name 4,4'-Dibromobiphenyl
Molecular Structure

Appearance:White powder

Density:1.667 g/cm3

Boiling Point:355-360ºC

Melting Point:166-169ºC

Flash Point:198.3ºC

Refractive Index:1.625

Water Solubility:INSOLUBLE

Stability:Stable at room temperature in closed containers under normal storage and handling conditions.

Storage Condition:Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.


CAS No. 92-86-4 is a colorless or white crystal or powder that is used in the chemical industry as a corrosion inhibitor, an antioxidant, and a stabilizer. It is mainly used as a corrosion inhibitor in water-based lubricants and in industrial cooling systems. It is also used in a variety of applications, including rubber and plastic production, oil recovery, and as a food additive.


The chemical compound is a derivative of an organic compound known as 4,4'-thiobis(6-tert-butyl-m-cresol), or TBTC. It is composed of two molecules of butyl cresol and one molecule of thiobis(6-tert-butyl-m-cresol). The compound is a colorless, crystalline powder and is soluble in most organic solvents.


CAS No. 92-86-4 is an effective corrosion inhibitor and antioxidant. It is used in hydraulic fluids, lubricants, and fuel additives to reduce corrosion and oxidation of metals. It is also used to improve the stability of a variety of materials, such as rubber and plastics, and to protect against the degradation of food products.


The compound is toxic when ingested and is considered a possible carcinogen. It should not be used in applications where it may come into contact with food or beverages. It is also not recommended for use in applications where it may be exposed to high temperatures, as it may decompose.


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