Perbromates

Perbromates are salts containing the bromate ion BrO4−, the conjugate base of perbromic acid HBrO4. The bromine in BrO4− is in the +7 oxidation state, making perbromates among the strongest bromine-based oxidizers. The ion adopts a tetrahedral geometry and is most stable in salt form, typically with alkali metals such as sodium or potassium.

Synthesis and occurrence: Perbromates are prepared by oxidizing bromine- or bromate-containing precursors under strongly oxidizing conditions, usually in alkaline solution to stabilize the BrO4− ion. They are far less common than chlorates or perchlorates.

Applications: In chemistry, perbromates function as oxidizing agents and reagents in organic and inorganic syntheses. They are used where a strong, relatively stable bromine(VII) oxidant is required, though handling hazards limit widespread use.

Safety: Perbromates are powerful oxidizers and can react violently with organic materials or reducing agents. They should be stored away from heat and incompatible substances and handled with appropriate protective equipment.

See also: bromates, chlorates, perchlorates, perbromic acid.