38521-51-6

Basic information

• Product Name: 2,3,4,5,6-PENTABROMOBENZYL BROMIDE
• Synonyms: 2,3,4,5,6-PENTABROMOBENZYL BROMIDE;2,3,4,5,6,alpha-hexabromotoluene;2,3,4,5,6-Pentabromo-1-(bromomethyl)benzene;2,3,4,5,6-Pentabrombenzyl Bromide;Einecs 253-985-6;1-BROMOMETHYL-2,3,4,5,6-PENTABROMOBENZENE
• CAS NO: 38521-51-6
• Molecular Formula: C₇H₂Br₆
• Molecular Weight: 565.51
• EINECS: 253-985-6
• Mol File: 38521-51-6.mol
• Article Data: 5

Chemical Properties

• Boiling Point: 460.4°Cat760mmHg
• Flash Point: 224°C
• Appearance: /
• Density: 2.829g/cm³
• Vapor Pressure: 3.19E-08mmHg at 25°C
• Refractive Index: 1.701
• CAS DataBase Reference: 2,3,4,5,6-PENTABROMOBENZYL BROMIDE(CAS DataBase Reference)
• NIST Chemistry Reference: 2,3,4,5,6-PENTABROMOBENZYL BROMIDE(38521-51-6)
• EPA Substance Registry System: 2,3,4,5,6-PENTABROMOBENZYL BROMIDE(38521-51-6)

Safety Data

• Hazardous Substances Data: 38521-51-6(Hazardous Substances Data)

Usage

General Description

2,3,4,5,6-Pentabromobenzyl bromide is a chemical compound that belongs to the class of brominated benzyl compounds. It is widely used as a flame retardant and is particularly effective in preventing fires in electronic products and building materials. 2,3,4,5,6-PENTABROMOBENZYL BROMIDE is highly reactive due to the presence of bromine atoms, which makes it useful in chemical synthesis. However, it is important to handle 2,3,4,5,6-Pentabromobenzyl bromide with caution as it can be toxic and harmful to the environment if not properly disposed of. Additionally, it is also regulated and restricted in many countries due to its potential environmental and health risks.

InChI:InChI=1/C7H2Br6/c8-1-2-3(9)5(11)7(13)6(12)4(2)10/h1H2

Upstream product

• 118-96-7 2,4,6-Trinitrotoluene 
• 7726-95-6 bromine 
• 7553-56-2 iodine 
• 108-88-3 toluene 
• 87-83-2 pentabromotoluene 

Downstream Products

• 87042-98-6 2-(Benzhydrylidene-amino)-3-pentabromophenyl-propionitrile 
• 79415-44-4 Dibutyl-pentabromophenylmethyl-amine 
• 87-83-2 pentabromotoluene 
• 61262-53-1 1,2-bis(pentabromophenyl)ethane 
• 95452-26-9 Diethyl pentabromobenzylphosphonate 
• 95452-28-1 dibutyl pentabromobenzylphosphonate 
• 1240046-67-6 S-(2,3,4,5,6-pentabromobenzyl)isothiourea hydrobromide 
• 59447-55-1 pentabromobenzyl acrylate 
• 1383676-85-4 4-nitro-4′-(2′,3″, 4′,5″,6″-pentabromophenylmethyloxy)diphenylethylene 
• 1246747-58-9 4-nitro-3′,4′-bis(2″,3″,4″,5″,6′-pentabromophenyl-methyloxy)diphenylethylene 
• 1347751-68-1 N,N'-dimethyl-S-(2,3,4,5,6-pentabromobenzyl)isothiouronium bromide 
• 1347751-67-0 N-methyl-S-(2,3,4,5,6-pentabromobenzyl)isothiouronium bromide 
• 1347751-70-5 N-allyl-S-(2,3,4,5,6-pentabromobenzyl)isothiouronium bromide 
• 1347751-69-2 N-ethyl-S-(2,3,4,5,6-pentabromobenzyl)isothiouronium bromide 

Relevant articles and documents

Single-faced flame resistance of cotton fabrics modified via mist copolymerization

Cotton fabrics with single-faced flame resistance are successfully fabricated through a simple mist copolymerization process using pentabromobenzyl acrylate (PBBA) as the functional monomer. The co-monomers are methyl acrylate (MA), which can react with the hydroxyl groups of cellulose by transesterification, and divinyl benzene (DVB), a cross-linker. SEM images indicate that a very thin copolymer layer (the thickness is about 200 nm) was formed on the cotton fiber surface and the flame resistance tests show that the modified fabrics have an improved flammability with longer time to ignition (TTI), lower peak heat release rate (PHRR), lower total heat release (THR), and lower average mass loss rate (AMLR), when compared to the original cotton fabric. The modification also results in good wearing durability because the flame-retardant coating was covalently linked to the cotton fabric surface by many ester groups. Moreover, desired cotton characteristics such as tensile strength, water absorbency, vapor permeability and flexibility are mostly retained because the mist method gives a single-faced modification of the cotton fabrics.

SYNTHESIS OF AROMATIC POLYHALOGENATED HALOMETHYL COMPOUNDS

The present invention discloses a process for the preparation of highly pure Pentabromobenzyl bromide, PBB-Br, wherein the benzylic bromination reaction is carried out in a suitable organic solvent in the presence of water and wherein the reaction temperature is such that it is sufficient to activate the initiator but not high enough to consume a substantial amount thereof.

POLYBROMO AROMATIC COMPOUNDS. I. SYNTHESIS OF SOME DERIVATIVES CONTAINING A PENTABROMOPHENYL RESIDUE

The synthesis of pentabromobenzyl bromide has been carried out, and its nucleophilic substitution reactions with alcohols, amines, sodium acetate, and silver nitrite have been studied.The C-Br bond in the bromomethyl group of pentabromobenzyl bromide readily undergoes homolysis, resulting in reductive dehalogenation.