Perbromic acid

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Perbromic acid

Identifiers
CAS Number	19445-25-1 N
3D model (JSmol)	Interactive image
ChEBI	CHEBI:29245 Y
ChemSpider	167074 Y
PubChem CID	192513
CompTox Dashboard (EPA)	DTXSID70276715
InChI InChI=1S/HBrO4/c2-1(3,4)5/h(H,2,3,4,5) Y Key: LLYCMZGLHLKPPU-UHFFFAOYSA-N Y InChI=1/HBrO4/c2-1(3,4)5/h(H,2,3,4,5) Key: LLYCMZGLHLKPPU-UHFFFAOYAZ
SMILES O[Br+3]([O-])([O-])[O-]
Properties
Chemical formula	BrHO4
Molar mass	144.908
Melting point	decomposes before melting, unstable as solid
Conjugate base	Perbromate
Hazards
Occupational safety and health (OHS/OSH):
Main hazards	powerful oxidizer
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). N verify (what is YN ?) Infobox references

Perbromic acid is the inorganic compound with the formula HBrO₄. Perbromic acid is characterized as a colorless liquid which has no characteristic scent. It is an oxoacid of bromine, with an oxidation state of +7. Perbromic acid is a strong acid and strongly oxidizing, though dilute perbromic acid solutions are slow oxidizing agents. It is the most unstable of the halogen(VII) oxoacids. It decomposes rapidly on standing to bromic acid and oxygen, which releases toxic brown bromine vapors. It can be used in the synthesis of perbromate salts, by reacting with a base.

Perbromic acid is unstable and cannot be formed by displacement of chlorine from perchloric acid, as periodic acid is prepared; it can only be made by protonation of the perbromate ion. Perbromic acid is stable in aqueous solutions no greater than 6M. Perbromic acid solutions greater than 6M are unstable in air, where an autocatalytic decomposition of the compound will occur. Metals such as Ce⁴⁺ and Ag⁺ can also catalyze the compound.