Hypoiodous acid

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Hypoiodous acid
Hypoiodous-acid-3D-vdW.png
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Names
IUPAC name
Hypoiodous acid
Other names
Hypoiodous acid
Identifiers
3D model (JSmol)
ChEBI
ChemSpider
Properties
HOI
Molar mass 143.89 g/mol
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references

Hypoiodous acid is the inorganic compound with the chemical formula HOI. It forms when an aqueous solution of iodine is treated with mercuric or silver salts. It rapidly decomposes by disproportionation:[1]

5 HOI → HIO3 + 2I2 + 2H2O

Hypoiodites of alkali and alkanine earth metals can be made in cold dilute soltions if iodine is added to ther respective hydroxides. Hypoiodous acid is a weak acid with a pKa of about 11. The conjugate base is hypoiodite (IO). Salts of this anion can be prepared by treating I2 with alkali hydroxides. They rapidly disproportionate to form iodides and iodates.[1]

References[edit]

  1. ^ a b Holleman, A.F. (2001). Inorganic chemistry (1st English ed., [edited] by Nils Wiberg. ed.). San Diego, Calif. : Berlin: Academic Press, W. de Gruyter. ISBN 0-12-352651-5.