Draft:Diiodosyl sulfate
![]() | Review waiting, please be patient.
This may take 3 months or more, since drafts are reviewed in no specific order. There are 2,516 pending submissions waiting for review.
Where to get help
How to improve a draft
You can also browse Wikipedia:Featured articles and Wikipedia:Good articles to find examples of Wikipedia's best writing on topics similar to your proposed article. Improving your odds of a speedy review To improve your odds of a faster review, tag your draft with relevant WikiProject tags using the button below. This will let reviewers know a new draft has been submitted in their area of interest. For instance, if you wrote about a female astronomer, you would want to add the Biography, Astronomy, and Women scientists tags. Editor resources
Reviewer tools
|
Diiodosyl sulfate is an inorganic compound, a basic salt of iodine and sulfuric acid with the formula (IO) 2 SO 4, yellow crystals.[1]
Synthesis
[edit]- Reaction of iodic and sulfuric acids :
2HIO3 + H2SO4 = (IO)2SO4 + O2 + 2H2O
I2 + 3O3 + H2SO4 = (IO)2SO4 + 3O2 + H2O
Physical properties
[edit]Diiodosyl sulfate forms yellow hygroscopic crystals and is poorly soluble in cold water.[2]
It dissolves and can be recrystallized in concentrated sulfuric acid.
Chemical properties
[edit]- Under the influence of atmospheric moisture, Diiodosyl sulfate hydrolyzes with the release of iodine, iodic and sulfuric acids.
- Decomposes when heated:[3]
4(IO) 2 SO 4 → 2I2O5 + 2I2 + 4SO3 + O2
- Reacts with sulfur(VI) oxide :
(IO) 2 SO 4 + 2SO3 → I2(SO4)3
- With concentrated sulfuric acid it forms an acidic salt:
(IO) 2 SO 4 + H2SO4 = 2IOHSO4
References
[edit]- ^ Gillespie, R. J.; Senior, J. B. (July 5, 1964). "Cations and Oxy Cations of Iodine. II. Solutions of Iodosyl Sulfate, Iodine Dioxide, and Iodic Acid-Iodine Mixtures in Sulfuric Acid and Dilute Oleum". Inorganic Chemistry. 3 (7): 972–977. doi:10.1021/ic50017a010 – via CrossRef.
- ^ "Chemistry of inorganic sulfonates and sulfates of polyvalent iodine". Russian Chemical Reviews 66. 1997.
- ^ Dasent, W. E.; Waddington, T. C. (January 1, 1960). "670. Iodine oxygen compounds. Part II. Iodosyl and related compounds". Journal of the Chemical Society (Resumed) (0): 3350–3356. doi:10.1039/JR9600003350 – via pubs.rsc.org.