Iodous acid

Iodous acid
Ball-and-stick model of iodous acid	Space-filling model of iodous acid
Names
	IUPAC name iodous acid
Identifiers
CAS Number	12134-99-5;
3D model (JSmol)	Interactive image;
ChemSpider	145806;
ECHA InfoCard	100.032.004
PubChem CID	166623;
CompTox Dashboard (EPA)	DTXSID801030159 ;
	InChI InChI=1S/HIO2/c2-1-3/h(H,2,3);
	SMILES O[I+][O-];
Properties
Chemical formula	HIO2
Molar mass	159.911
Conjugate base	Iodite
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Iodous acid is the chemical compound with the formula HIO₂. Its salts are named iodites; these are exceedingly unstable and have been observed but never isolated.^[1] They will rapidly disproportionate to molecular iodine and iodates.

^ Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. ISBN 978-0-08-037941-8.

[1] Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. ISBN 978-0-08-037941-8.

[1]

Iodous acid

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