Tetrachloroiodic acid

Tetrachloroiodic acid
Identifiers
3D model (JSmol)
  • InChI=1S/Cl4I/c1-5(2,3)4/q-1/p+1
    Key: VEFRWHPHQIYAIZ-UHFFFAOYSA-O
  • [H+].[Cl-][I3+]([Cl-])([Cl-])[Cl-]
Properties
HICl4
Appearance Orange crystals (hydrate)
Melting point 19 °C (66 °F; 292 K) (hydrate)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Tetrachloroiodic acid is an inorganic compound with the formula HICl4, which acts the only example of a stable acid derived from a polyhalide. An orange crystalline tetrahydrate is known. No anhydrous tetrachloroiodic acid is known to exist; rather, it is isolated as hydronium salts of the tetrachloroiodate anion. It is unstable in air.

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