Tin(II) sulfate

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Tin(II) sulfate
Tin(II) sulfate crystallizes in an heavily distorted barium sulfrate structure.
Unit cell of tin(II) sulfate.
Other names
Stannous sulfate
3D model (JSmol)
ECHA InfoCard 100.028.457
EC Number 231-302-2
Molar mass 214.773 g/mol
Appearance white-yellowish crystalline solid
Density 4.15 g/cm3
Melting point 378 °C (712 °F; 651 K)
Boiling point decomposes to SnO2 and SO2
33 g/100 mL (25 °C)
Primitive orthorhombic
Pnma, No. 62
a = 8.80 Å, b = 5.32 Å, c = 7.12 Å[2]
NFPA 704
Flammability code 0: Will not burn. E.g., waterHealth code 1: Exposure would cause irritation but only minor residual injury. E.g., turpentineReactivity code 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g., liquid nitrogenSpecial hazards (white): no codeNFPA 704 four-colored diamond
Flash point Non-flammable
Lethal dose or concentration (LD, LC):
2207 mg/kg (oral, rat)
2152 mg/kg (oral, mouse)[3]
Related compounds
Other anions
Tin(II) chloride, tin(II) bromide, tin(II) iodide
Other cations
Lead(II) sulfate
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references

Tin(II) sulfate (SnSO4) is a chemical compound. It is a white solid that can absorb enough moisture from the air to become fully dissolved, forming an aqueous solution; this property is known as deliquescence. It can be prepared by a displacement reaction between metallic tin and copper(II) sulfate:[4]

Sn (s) + CuSO4 (aq) → Cu (s) + SnSO4 (aq)

Tin(II) sulfate is a convenient source of tin(II) ions uncontaminated by tin(IV) species.


In the solid state the sulfate ions are linked together by O-Sn-O bridges. The tin atom has three oxygen atoms arranged pyramidally at 226 pm with the three O-Sn-O bond angles of 79°, 77.1° and 77.1°. Other Sn-O distances are longer ranging from 295 - 334pm.[4][5]


  1. ^ doi:10.1107/S0567740872003322
  2. ^ doi:10.1107/S0567740872003322
  3. ^ "Tin (inorganic compounds, as Sn)". Immediately Dangerous to Life and Health Concentrations (IDLH). National Institute for Occupational Safety and Health (NIOSH). 
  4. ^ a b Greenwood, Norman N.; Earnshaw, Alan (1984). Chemistry of the Elements. Oxford: Pergamon Press. p. 451. ISBN 0-08-022057-6. 
  5. ^ Donaldson, J. D.; Puxley, D. C. (1972). "The crystal structure of tin(II) sulphate". Acta Crystallographica Section B. 28 (3): 864–867. doi:10.1107/S0567740872003322. ISSN 0567-7408.