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Tribromide is the anion with the chemical formula Br 3 −, or salts containing it: . Tetrabutylammonium tribromide; Tetrabromophosphonium tribromide; Pyridinium perbromide; Sodium and potassium tribromides can be prepared by reacting NaBr or KBr with aqueous bromine.
Pyridinium perbromide (also called pyridinium bromide perbromide, pyridine hydrobromide perbromide, or pyridinium tribromide) is an organic chemical composed of a pyridinium cation and a tribromide anion. It can also be considered as a complex containing pyridinium bromide—the salt of pyridine and hydrogen bromide—with an added bromine (Br ...
The tribromide anion, Br ... the bromate anion is stable to disproportionation in both acidic and aqueous solutions. Bromic acid is a strong acid.
Aluminium tribromide is the most common form of aluminium bromide. [3] It is a colorless, sublimable hygroscopic solid; hence old samples tend to be hydrated, mostly as aluminium tribromide hexahydrate (AlBr 3 ·6H 2 O).
Bromoantimonates can have antimony in one of two oxidation states, either +3 or +5.These are designated by bromoantimonate(III) or bromoantimonate(V). Although antimony tribromide is known, SbBr 5 on its own does not exist, despite the existence of SbBr − 6. [1]
Antimony tribromide has two crystalline forms, both having orthorhombic symmetries. When a warm carbon disulfide solution of SbBr 3 is rapidly cooled, it crystallizes into the needle-like α-SbBr 3, which then slowly converts to the more stable β form. [2] Antimony tribromide hydrolyzes in water to form hydrobromic acid and antimony trioxide:
Boron tribromide, BBr 3, is a colorless, fuming liquid compound containing boron and bromine. Commercial samples usually are amber to red/brown, due to weak bromine contamination. Commercial samples usually are amber to red/brown, due to weak bromine contamination.
Tetrabutylammonium tribromide, abbreviated to TBATB, is a pale orange solid with the formula [N(C 4 H 9) 4]Br 3. It is a salt of the lipophilic tetrabutylammonium cation and the linear tribromide anion. [3] [4] The salt is sometimes used as a reagent used in organic synthesis as a conveniently weighable, solid source of bromine.