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Tin(IV) chloride

Safety data
IUPAC name Tin tetrachloride
Tin(IV) chloride
Other names Stannic chloride
CAS number 7646-78-8
Molecular formula SnCl4
Molar mass 260.50 g/mol
Appearance fuming liquid
Density 2.226 g/ml, liquid
Melting point

-33 °C

Boiling point

114.1 °C

Solubility in water Decomposes
Viscosity  ? cP at ? °C
EU classification Corrosive (C)
R-phrases R34, R52/53
S-phrases S1/2, S7/8, S26,
S45, S61
Related Compounds
Other anions Tin(IV) fluoride
Tin(IV) bromide
Tin(IV) iodide
Other cations Tin(II) chloride
Germanium tetrachloride
Lead(IV) chloride
Except where noted otherwise, data are given for
materials in their standard state
(at 25 °C, 100 kPa)

Infobox disclaimer and references

Tin(IV) chloride, also known as tin tetrachloride or stannic chloride is a chemical compound with the formula SnCl4. At room temperature it is a colourless liquid, which fumes on contact with air, giving a stinging odour. Its molecular weight is 260.5, its boiling point 114°C, and its freezing point -32°C. It is prepared from reaction of chlorine gas with elemental tin.

Anhydrous tin(IV) chloride is a strong Lewis acid which reacts violently with water. It is extremely corrosive to skin. On contact with air it releases severely irritating hydrogen chloride fumes. It forms a white pentahydrate, formerly known as butter of tin because of its consistency.

Stannic chloride was used as a chemical weapon in World War I. It is also used in the glass container industry for making an external coating containing tin(IV) oxide which toughens the glass. It is a starting material for organotin compounds.

Stannic chloride is used in chemical reactions with fuming (90%) nitric acid for the selective nitration of activated aromatic rings in the presence of unactivated ones.[1]

See also

Tin(II) chloride


  1. ^ Thurston, D. E. et al. (1990). Synthesis 81–84.
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Tin(IV)_chloride". A list of authors is available in Wikipedia.
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