Hypoiodous acid
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| IUPAC name
Hypoiodous acid
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3D model (JSmol)
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CompTox Dashboard (EPA)
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| Properties | |||
| HOI | |||
| Molar mass | 143.911 g·mol−1 | ||
| Acidity (pKa) | 10.5 (in water, estimate) | ||
| Conjugate base | Hypoiodite | ||
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Related compounds
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Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Hypoiodous acid is an 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 HIO → HIO3 + 2 I2 + 2 H2O
Hypoiodites of alkali and alkaline earth metals can be made in cold dilute solutions if iodine is added to their 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]
- ^ a b Holleman, A.F. (2001). Wiberg, Nils (ed.). Inorganic chemistry (1st English ed.). San Diego, Calif. : Berlin: Academic Press, W. de Gruyter. ISBN 0-12-352651-5.
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