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Iodine sulfate

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(Redirected from Iodine(III) sulfate)
Iodine sulfate
Names
Other names
Iodine(III) sulfate
Identifiers
3D model (JSmol)
  • InChI=1S/2H4I.3H2O4S/c;;3*1-5(2,3)4/h2*1H4;3*(H2,1,2,3,4)/q2*+3;;;/p-6
    Key: PRMTVTMSZQVGDM-UHFFFAOYSA-H
  • [I3+].[I3+].[O-]S(=O)(=O)[O-].[O-]S(=O)(=O)[O-].[O-]S(=O)(=O)[O-]
Properties
I2(SO4)3
Appearance Light yellow crystals
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

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

Synthesis

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Reaction of diiodosyl sulfate and sulfur trioxide:[2][3][4]

(IO)2SO4 + 2 SO3 → I2(SO4)3

Iodine sulfate is also produced when elemental I2 , I2O5 and SO3 react.[5]

Physical properties

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

Chemical properties

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Iodine sulfate is soluble in organic liquids[3] and stable in anhydrous and strongly acidic solvents.[6] In a humid environment, it darkens due to decomposition that releases molecular iodine.[2]

References

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  1. ^ Kasumov; Koz'min; Zefirov (1997). "Chemistry of inorganic sulfonates and sulfates of polyvalent iodine". Russian Chemical Reviews. 66 (10): 843–857. doi:10.1070/RC1997v066n10ABEH000282.
  2. ^ a b c Fichter; Kappeler (1915). "Neue Beobachtungen an Jodisalzen". ZAAC. 91: 134–144. doi:10.1002/ZAAC.19150910109.
  3. ^ a b c Argument, Cyril (1944). "The iodous sulphates". Durham theses. Durham University. pp. 22–23: According to the equation: (IO)2SO4 + 2SO3 = I2(SO4)3 ... 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 I2(SO4)3 ... the neutral salts have a much lighter yellow colour[,] a greater solubility in organic liquids and a greater sensitivity to water.
  4. ^ Selte, Kari; Kjekshus, Arne (1971). "Iodine Oxides. Part IV. Solid Compounds Formed in the Systems H2O—SO3—I2On (n=3, 4, and 5)". Acta Chem. Scand. 25 (2): 751–752. doi:10.3891/acta.chem.scand.25-0751.
  5. ^ 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. doi:10.1002/zaac.19592990107.
  6. ^ a b 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. doi:10.1055/s-2008-1067169.