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Names | |
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Other names
dioxidoiodide, iodyl, iodoxy radical, iodine peroxide, iodine superoxide
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Identifiers | |
3D model (JSmol)
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ChEBI | |
ChemSpider | |
404604 | |
PubChem CID
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Properties | |
IO2 | |
Molar mass | 158.902 g·mol−1 |
Appearance | yellow solid |
Density | 4.2 g/cm3 |
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).
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Iodine dioxide is a binary inorganic compound of iodine and oxygen with the chemical formula IO
2.[1][2] This compound is one of many iodine oxides.[3][4]
The compound can be prepared by reacting sulphuric acid with iodic acid or by the action of concentrated nitric acid upon dry powedered iodine.[5]
It forms yellow crystalline solid. Reacts with water.[5][6] Iodine dioxide has an irritating effect, can be found in the wastes from the production of certain pharmaceuticals.[7]