My watch list

Tin(IV) iodide

tin(IV) iodide


IUPAC name	tin(IV) iodide
Properties
Molecular formula	SnI₄
Molar mass	626.328 g mol⁻¹
Appearance	red-orange solid
Density	4.56 g cm⁻³
Melting point	144 °C^[1]
Boiling point	348 °C
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox disclaimer and references

Tin(IV) iodide, also known as stannic iodide is the chemical compound with the formula SnI₄. This tetrahedral molecule crystallises as a bright orange solid that dissolves readily in nonpolar solvents such as benzene.^[2]

Additional recommended knowledge

Weighing the right way

Essential Laboratory Skills Guide

Safe Weighing Range Ensures Accurate Results

The compound is usually prepared by the reaction of iodine and tin:^[3]

Sn + 2 I₂ → SnI₄

The compound hydrolyses in water. In aqueous hydroiodic acid, it reacts to form a rare example of a metal hexaiodide:^[3]

SnI₄ + 2 I⁻ → [SnI₆]²⁻

References

^ Greenwood, N. N.; Earnshaw, A. (1997). Chemistry of the Elements, 2nd Edition, Oxford:Butterworth-Heinemann. ISBN 0-7506-3365-4.
^ http://www.webelements.com/webelements/compounds/text/Sn/I4Sn1-7790478.html
^ ^a ^b Therald Moeller, Delwin C. Edwards, "Tin(IV) Iodide (Stannic Iodide)" Inorganic Syntheses, 1953 volume IV, pp. 119-121