Bromous acid

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Bromous acid
IUPAC name Bromous acid[note 1]
Other names Bromic(III) acid
Hydroxy-λ3-bromanone
Hydroxidooxidobromine
Identifiers
InChI InChI=1/BrHO2/c2-1-3/h(H,2,3)
InChIKey DKSMCEUSSQTGBK-UHFFFAOYAC
Standard InChI InChI=1S/BrHO2/c2-1-3/h(H,2,3)
Standard InChIKey DKSMCEUSSQTGBK-UHFFFAOYSA-N
CAS number [37691-27-3]
ChemSpider 145144
Properties[2][3]
Chemical formula HBrO2
Molar mass 112.91 g mol−1
Acidity (pKa) 3.46(12)
Related compounds
Other halous acids Chlorous acid
Other compounds Hydrobromic acid
Hypobromous acid
Bromic acid
Perbromic acid
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)

Bromous acid, HBrO2, is a purported oxoacid of bromine. Its existence as a molecular species has been considered doubtful,[4] because of of its propensity to rapid disproportionation, but some salts (bromites) are known.[4] It is an intermediate in the Belousov–Zhabotinskii reaction.

Notes and references

Notes

  1. Bromous acid is a retained name in IUPAC nomenclature.[1]

References

  1. Nomenclature of Inorganic Chemistry; IUPAC Recommendations 2005; Royal Society of Chemistry: Cambridge, 2005; p 287. ISBN 0-85404-438-8, <http://www.iupac.org/publications/books/rbook/Red_Book_2005.pdf>.
  2. de Barros Faria, Roberto; Epstein, Irving R.; Kustin, Kenneth Systematic design of chemical oscillators. Part 84. Determination of the pKa of bromous acid. J. Phys. Chem. 1992, 96 (17), 6861–63. DOI: 10.1021/j100196a003.
  3. Faria, R. B.; Epstein, Irving R.; Kustin, Kenneth Kinetics of Disproportionation and pKa of Bromous Acid. J. Phys. Chem. 1994, 98 (4), 1363–67. DOI: 10.1021/j100055a051.
  4. 4.0 4.1 Ukeles, S. D.; Freiberg, M. Bromine, Inorganic Compounds. In Kirk-Othmer Encyclopedia of Chemical Technology; John Wiley: New York, 2002. DOI: 10.1002/0471238961.021815131001031.

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