57422-77-2 Usage
Description
2,5-DIBROMOBIPHENYL, also known as PBB 9, is a brominated biphenyl compound related to PBB 37 (P215150). It is characterized by the presence of two bromine atoms at the 2nd and 5th positions of the biphenyl molecule. This chemical structure endows it with specific properties that make it suitable for various applications.
Uses
Used in Flame Retardancy:
2,5-DIBROMOBIPHENYL is used as an additive in the flame retardancy industry for its ability to slow down the spread of fire and reduce the flammability of materials. The presence of bromine atoms in its structure enhances the fire-resistant properties, making it an effective additive for various consumer products.
2,5-DIBROMOBIPHENYL is used as a flame retardant for:
Appliances: To improve the safety of household appliances by reducing the risk of fire.
Electronics: To protect electronic devices from the potential hazards of fire, ensuring their longevity and safety.
Plastics: To enhance the fire resistance of plastic materials, which are commonly used in various industries and applications.
Check Digit Verification of cas no
The CAS Registry Mumber 57422-77-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,4,2 and 2 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 57422-77:
(7*5)+(6*7)+(5*4)+(4*2)+(3*2)+(2*7)+(1*7)=132
132 % 10 = 2
So 57422-77-2 is a valid CAS Registry Number.
InChI:InChI=1/C12H8Br2/c13-10-6-7-12(14)11(8-10)9-4-2-1-3-5-9/h1-8H
57422-77-2Relevant articles and documents
Reactivity of alkali and alkaline earth metal tetrafluorobromates towards aromatic compounds and pyridine
Sobolev, Vasily I.,Filimonov, Victor D.,Ostvald, Roman V.,Radchenko, Vyacheslav B.,Zherin, Ivan I.
, p. 120 - 123 (2016/11/17)
The bromination activity of tetrafluorobromates of alkali and alkali-earth metals increases in the order KBrF4, CsBrF4, RbBrF4and Ba(BrF4)2. The most active tetrafluorobromate—Ba(BrF4)2is able to selectively brominate the deactivated aromatic compounds nitrobenzene and 4-nitrotoluene, but not the activated compounds benzene and toluene. In all cases bromination of methyl groups of methylbenzenes does not occur. Ba(BrF4)2forms the known complex C6H5N·BrF3when reacted with pyridine. Due to dilution by inert BaF2, this pyridine-based complex is air stable and can be considered as safer and more convenient reagent in comparison with the original fluorobromates; it can selectively brominate benzene and toluene in contrast with tetrafluorobromates.
