Tin(II) iodide

Tin(II) iodide
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Template:Longitem	Template:Chembox Elements/molecular formula
Molar mass	Template:Chem molar mass
Appearance	red to red-orange solid
Density	5.28 g/cm3
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Template:Longitem	tin dichloride, tin(II) bromide
Template:Longitem	lead(II) iodide
Template:Longitem	tin tetraiodide

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Tin(II) iodide, also known as stannous iodide, is the inorganic compound with the formula SnI₂. It is a red-orange solid. It reacts with iodine to give tin(IV) iodide.^[1]

Tin(II) iodide can be synthesised by heating metallic tin with a mixture iodine in 2 M hydrochloric acid.^[2]^[1]

Sn + I₂ → SnI₂

Structure

Structure of solid SnI2. Color code: violet = I, gray = Sn.

It crystallizes in a unique motif. According to X-ray crystallography, some Sn(II) centers are bound to six iodide ligands others Sn(II) sites are distorted.^[3]