dioxidoiodide, iodyl, iodoxy radical, iodine peroxide, iodine superoxide
3D model (JSmol)
|Molar mass||158.902 g·mol−1|
|Melting point||130 °C (266 °F; 403 K)|
|reacts with water|
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Iodine dioxide is a binary inorganic compound of iodine and oxygen with the chemical formula IO
2. This compound is one of many iodine oxides.
The compound can be prepared by reacting sulphuric acid with iodic acid or by the action of concentrated nitric acid upon dry powedered iodine.
It forms yellow crystalline solid. Reacts with water. Iodine dioxide has an irritating effect, can be found in the wastes from the production of certain pharmaceuticals.