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Bromous acid: Difference between revisions

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Revision as of 15:21, 27 April 2012

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Bromous acid
Names
IUPAC names hydroxy-λ-bromanone
hydroxidooxidobromine
bromous acid
Identifiers
3D model (JSmol)
ChEBI
ChemSpider
PubChem CID
CompTox Dashboard (EPA)
InChI
  • InChI=1S/BrHO2/c2-1-3/h(H,2,3)Key: DKSMCEUSSQTGBK-UHFFFAOYSA-N
  • InChI=1/BrHO2/c2-1-3/h(H,2,3)Key: DKSMCEUSSQTGBK-UHFFFAOYAC
SMILES
  • O=BrO
Properties
Chemical formula HBrO2
Molar mass 112.911 g/mol
Except where otherwise noted, data are given for materials in their standard state (at 25 °C , 100 kPa). checkY verify (what is  ?) Infobox references
Chemical compound

Bromous acid with the formula HBrO2 has bromine in the +3 oxidation state. The salts of bromous acid are called bromites. The acid is not stable and only occurs as an intermediate, for example in the oxidation of hypobromites.

Chemistry

Bromous acid can be produced by classical chemical or electrochemicals method via anodic oxidation.

HBrO + HClO → HBrO2 + HCl

Also disproportioning of hypobromous acid will give bromous acid and hydrobromic acid.

2 HBrO → HBrO2 + HBr

Lastly, a synproportion reaction of bromic acid and hydrobromic acid gives bromous acid.

2 HBrO3 + HBr → 3 HBrO2

Compounds

Several bromites are stable and have been isolated. For example NaBrO2· 3H2O and Ba(BrO2)2·H2O.

Use

Bromites can be used for the reduction of permanganates to manganates.

2MnO
4 + BrO
2 + OH → 2MnO
4 + BrO
3 + H2O

References

  1. ^ Egon Wiberg, Arnold Frederick Holleman (2001) Inorganic Chemistry, Elsevier ISBN 0-12-352651-5
Hydrogen compounds
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