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Tin(II) chloride
IUPAC name	Tin(II) chloride
Other names	Stannous chloride Tin salt Tin dichloride Tin protochloride
Identifiers
CAS number	[7772-99-8] (anhydrous) [10025-69-1] (dihydrate)
RTECS number	XP8700000 (anhydrous) XP8850000 (dihydrate)
Properties
Molecular formula	SnCl2
Molar mass	189.60 g/mol (anhydrous) 225.63 (dihydrate)
Appearance	White crystalline solid
Density	3.95 g/cm³, anhydrous solid 2.71 g/cm³, dihydrate (15 °C)
Melting point	246 °C (519 K)
Boiling point	623 °C (896 K)
Solubility in water	83.9 g/100 ml (0 °C) Hydrolyses in hot water
Structure
Crystal structure	Layer structure (chains of SnCl3 groups)
Coordination geometry	Trigonal pyramidal (anhydrous) Dihydrate also three-coordinate
Molecular shape	Bent (gas phase)
Hazards
MSDS	External MSDS
Main hazards	Corrosive
R-phrases	22-34-37
S-phrases	26-36/37/39-45
Related compounds
Other anions	Tin(II) fluoride Tin(II) bromide
Other cations	Tin(IV) chloride Germanium dichloride Lead(II) chloride
Supplementary data page
Structure and properties	n, år, etc.
Thermodynamic data	Phase behaviour Solid, liquid, gas
Spectral data	UV, IR, NMR, MS
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox references