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Tetrabromophthalic Anhydride by Oceanchem Group acts as a flame retardant.
Tetrabromophthalic Anhydride is a highly efficient reactive aromatic bromine source.
In some cases Tetrabromophthalic Anhydride’s derivatives can be substituted for higher bromine-containing flame retardants , allowed for the highest level of bromine to be reacted into unsaturated polyesters at comparable monomer levels.
CAS: 632-79-1
MF: C8Br4O3
MW: 463.7
EINECS: 211-185-4
Synonyms
1,3-Isobenzofurandione, 4,5,6,7-tetrabromo-;1,3-Isobenzofurandione,4,5,6,7-tetrabromo-;3,4,5,6-Tetrabromophthalic anhydride;3,4,5,6-tetrabromophthalicanhydride;3-Isobenzofurandione,4,5,6,7-tetrabromo-1;4,5,6,7-Tetrabromo-2-benzofuran-1,3-dione;4,5,6,7-tetrabromo-3-isobenzofurandione;TETRABROMOPHTHALIC ANHYDRIDE
Tetrabromophthalic Anhydride finds use in various engineering plastics to resist burning based on its excellent thermal stability.
Tetrabromophthalic Anhydride is compatible with polyester, unsaturated polyester, epoxy resin, polystyrene, polypropylene and polyethylene.
Tetrabromophthalic Anhydride is a cyclic dicarboxylic anhydride and a member of 2-benzofurans.
Tetrabromophthalic Anhydride is a chemical compound with various industrial applications due to its unique properties.
Tetrabromophthalic Anhydride’s tetrabromophthalic anhydride (TBPA) is a reactive flame retardant incorporated into unsaturated resins.
Tetrabromophthalic Anhydride is also a starting material for the manufacture of other flame retardants such as bromine-containing urethane polyols and diallyl tetrabromophthalate.
Additionally, Tetrabromophthalic Anhydride is used to manufacture sulfobromophthalein, a compound used as a diagnostic aid for the determination of liver function.
Tetrabromophthalic Anhydride is a non-hazardous, white to pale yellow crystalline powder or solid with a faintly pungent odor.
Tetrabromophthalic Anhydride is slightly soluble in Benzene and DMSO.
Tetrabromophthalic Anhydride reacts exothermically with water.
This reaction is expected to be slow, but can become vigorous if local heating accelerates it.
Acids accelerate its reaction with water.
Tetrabromophthalic Anhydride is incompatible with acids, strong oxidizing agents, alcohols, amines, and bases.
Tetrabromophthalic Anhydride is prepared by bromination of phthalic anhydride in 60% oleum (fuming sulfuric acid containing 45-65% sulfur trioxide), rendering a 95% yield.
Because the halogenating agent is bromine, an excess of oleum is used to oxidize the by-product hydrogen bromide to bromine.
As a result, some sulfonation of the aromatic ring occurs, which is then removed by reacting the anhydride with dilute sodium hydroxide, filtering, and acidifying with dilute hydrochloric acid.
The precipitated acid, washed with hot water, is reconverted to the anhydride by heating at 150 °C for several hours.
Tetrabromophthalic Anhydride can also be prepared by the reaction of phthalic anhydride and bromine in a mixture of concentrated sulfuric acid and 70% hydrogen peroxide in the presence of iodine, or in chlorosulfonic acid containing sulfur.
Tetrabromophthalic Anhydride is mainly used as a flame retardant in plastics, paper, and resin.
Tetrabromophthalic Anhydride Chemical Properties
Melting point: 269-271 °C (lit.)
Boiling point: 540.5±50.0 °C(Predicted)
density: 2.87
vapor pressure: 0.11 mm Hg ( 180 °C)
refractive index: 1.5000 (estimate)
storage temp.: Store below +30°C.
solubility: Chloroform (Slightly), DMSO (Slightly, Sonicated), Methanol (Sparingly, Heated,
form: Powder
color: White to light yellow
Water Solubility: hydrolysis
Sensitive: Moisture Sensitive
BRN: 18908
Stability: Moisture Sensitive
LogP: 2.27 at 40℃
CAS DataBase Reference: 632-79-1(CAS DataBase Reference)
NIST Chemistry Reference: Tetrabromophthalic Anhydride(632-79-1)
EPA Substance Registry System: Tetrabromophthalic Anhydride (632-79-1)
Uses
Tetrabromophthalic Anhydride is a brominated flame retardant used as additives in plastics to decrease the rate of combustion of these materials, leading to greater consumer safety.
Tetrabromophthalic Anhydride is a reactive flame retardant, can be used for polyester resin, epoxy resin, flame retardant, also can be used for flame retardant for PS, PP, PE, flame-retardant ABS resin.
Tetrabromophthalic Anhydride is a powerful fire–retardant monomer, markedly superior to tetrachlorophthalic (TCPA) anhydrides, as demonstrated in comparative combustion tests on polyester and epoxy resins.
As a flame retardant Tetrabromophthalic Anhydride is used in plastics, paper and textiles, and also as an intermediate to produce pharmaceuticals.
As a reaction burning-resistant agent, Tetrabromophthalic Anhydride is used for polyester, unsaturated polyester, and epoxy resin.
As an additive burning-resistant agent, TCC’s Tetrabromophthalic Anhydride can be used for polystyrene, polypropylene, and ABG resin, antimony trioxide and other engineering plastics and synthetic materials, and for the composition of fine chemical substances.
Reactivity Profile
Tetrabromophthalic Anhydride reacts exothermically with water.
This reaction is expected to be slow, but can become vigorous if local heating accelerates Tetrabromophthalic Anhydride.
Reaction with water is accelerated by acids.
Incompatible with acids, strong oxidizing agents, alcohols, amines, and bases.
