| Names | |
|---|---|
| Other names Iodosyl sulfate | |
| Identifiers | |
3D model (JSmol) | |
| |
| Properties | |
| (IO)2SO4 | |
| Molar mass | 381.87 g/mol |
Except where otherwise noted, data are given for materials in theirstandard state (at 25 °C [77 °F], 100 kPa). | |
Diiodosyl sulfate is aninorganic compound, abasic salt ofiodine andsulfuric acid with the formula (IO)2SO4. It forms yellow crystals.[1]
Reaction of iodic and sulfuric acids :
Passingozonizedoxygen through a solution of iodine in sulfuric acid:
Diiodosyl sulfate forms yellowhygroscopic crystals and is poorly soluble in cold water.[2]
It dissolves in and can be recrystallized from concentrated sulfuric acid.
Under the influence of atmospheric moisture, diiodosyl sulfate hydrolyzes with the release of iodine,iodic and sulfuric acids.
It decomposes when heated:[3]
It reacts withsulfur trioxide:[4]
With concentrated sulfuric acid, it forms an acidic salt: