Iodous acid
|  | |||
| Names | |||
|---|---|---|---|
| IUPAC name iodous acid | |||
| Identifiers | |||
| 3D model (JSmol) | |||
| ChemSpider | |||
| ECHA InfoCard | 100.032.004 | ||
| PubChem CID | |||
| CompTox Dashboard (EPA) | |||
| 
 | |||
| 
 | |||
| Properties | |||
| 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. They will rapidly disproportionate to molecular iodine and iodates.