Iodine sulfate explained

Iodine sulfate is an inorganic compound of iodine and sulfuric acid with the formula I₂(SO₄)₃.^[1] It appears as light yellow crystals and reacts with water.

Synthesis

Reaction of diiodosyl sulfate and sulfur trioxide:^{[2] [3]}

Physical properties

Iodine sulfate forms light yellow hygroscopic crystals.^{[2] [3] [6]}

Chemical properties

Iodine sulfate is soluble in organic liquids^[3] and stable in anhydrous and strongly acidic solvents.^[6] Under the influence of atmospheric moisture it darkens due to the release of iodine.^[2]

References

• Zefirov . Sorokin . Zhdankin . Koz'min . 1986 . Sul'faty trekhvalentnogo ioda - novye reagenty dlya funktsionalizatsii olefinov v tsiklicheskie sul'faty . Sulfates of trivalent iodine - new reagents for functionalization of defins to cyclic sulfates . Zhurnal Organicheskoj Khimii . 22(2) . 450-452 . 0514-7492 . ru.
• Adriano . Maulide . 2021 . Recent discoveries on the structure of iodine(iii) reagents and their use in cross-nucleophile coupling . Chemical Science . 853-864 . 10.1039/D0SC03266B . 12. 8178994 .
• Robinson. Woodward. 2003 . Direct formation of cyclic sulfates utilising hypervalent iodine species and sulfur trioxide adducts . Tetrahedron Letters . 44 . 8 . 1655–1657 . 10.1016/S0040-4039(03)00039-X . 0040-4039.

Notes and References

1. Kasumov . Koz'min . Zefirov . 1997 . Chemistry of inorganic sulfonates and sulfates of polyvalent iodine . Russian Chemical Reviews . 66 . 10 . 843-857 . 10.1070/RC1997v066n10ABEH000282.
2. Fichter . Kappeler. Neue Beobachtungen an Jodisalzen . ZAAC . 1915 . 91 . 134-144 . 10.1002/ZAAC.19150910109.
3. Selte . Kari . Kjekshus . Arne. 1971 . Iodine Oxides. Part IV. Solid Compounds Formed in the Systems H₂O—SO₃—I₂O (3, 4, and 5) . Acta Chem. Scand. . 25 . 2. 751-752 . 10.3891/acta.chem.scand.25-0751.
4. Lehmann . Hans-Albert . Hesselbarth . Heinz . 1959 . Zur Chemie des Schwefeltrioxyds. XI. Zur Kenntnis der SO₃-Verbindungen des J₂O₅ und J₂O₄ . ZAAC . 299 . 1-2 . 51-57 . 10.1002/zaac.19592990107.
5. Argument . Cyril . 1944 . The iodous sulphates . Durham theses. Durham University . 22-23 . According to the equation: ... the yellow crystals could be isolated. They showed properties typical of a neutral iodine salt, being specially sensitive to moisture. Fichter et al.] showed that the compound was mainly neutral iodine sulphate ... the neutral salts have a much lighter yellow colour[,] a greater solubility in organic liquids and a greater sensitivity to water.}}^[3]

   Iodine sulfate is also produced when elemental, and react.^[4]

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6. Kraszkiewicz . Lukasz . Skulski . Lech . 2008 . Facile Syntheses of Symmetrical Diaryliodonium Salts from Various Arenes, with Sodium Metaperiodate as the Coupling Reagent in Acidic Media . Synthesis . 15 . 2373-2380 . 10.1055/s-2008-1067169.