Tin(IV) iodide

Tin(IV) iodide
IUPAC name

tin(IV) iodide
Other names

tin tetraiodide
stannic 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
Structure
Crystal structure Cubic, cP40
Space group P-43m, No. 205
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Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Infobox 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]

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

Sn + 2 I2 → SnI4

The compound hydrolyses in water.[4] In aqueous hydroiodic acid, it reacts to form a rare example of a metal hexaiodide:[3]

SnI4 + 2 I− → [SnI6]2−

Related pages

References

  1. ^ Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Oxford: Butterworth-Heinemann. ISBN 0080379419. 
  2. ^ Chemistry : Periodic Table : tin : compound data [tin (IV) iodide]
  3. ^ a b Moeller, T., Edwards, D. C., Brandt, R. L. and Kleinberg, J. (1953). "Tin(IV) Iodide (Stannic Iodide)". Inorganic Syntheses. Inorganic Syntheses 4: 119–121. doi:10.1002/9780470132357.ch40. ISBN 9780470132357. 
  4. ^ Hickling, G. G. (1990). "Gravimetric analysis: The synthesis of tin iodide". J. Chem. Educ. 67 (8): 702–703. doi:10.1021/ed067p702.