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Tin(II) sulfate

Tin(II) sulfate
Tin(II) sulfate crystallizes in an heavily distorted barium sulfrate structure.
Unit cell of tin(II) sulfate.
Names
Other names
Stannous sulfate
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.028.457
EC Number
  • 231-302-2
UNII
  • InChI=1S/H2O4S.Sn.2H/c1-5(2,3)4;;;/h(H2,1,2,3,4);;;/q;+2;;/p-2 checkY
    Key: RCIVOBGSMSSVTR-UHFFFAOYSA-L checkY
  • InChI=1/H2O4S.Sn.2H/c1-5(2,3)4;;;/h(H2,1,2,3,4);;;/q;+2;;/p-2/rH2O4S.H2Sn/c1-5(2,3)4;/h(H2,1,2,3,4);1H2/q;+2/p-2
    Key: RCIVOBGSMSSVTR-YHUAHBEBAB
  • [O-]S(=O)(=O)[O-].[SnH2+2]
Properties
SnSO4
Molar mass 214.773 g/mol
Appearance white-yellowish crystalline solid
deliquescent
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)
Structure[1]
Primitive orthorhombic
Pnma, No. 62
a = 8.80 Å, b = 5.32 Å, c = 7.12 Å[1]
Hazards
NFPA 704 (fire diamond)
NFPA 704 four-colored diamondHealth 1: Exposure would cause irritation but only minor residual injury. E.g. turpentineFlammability 0: Will not burn. E.g. waterInstability 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g. liquid nitrogenSpecial hazards (white): no code
1
0
0
Flash point Non-flammable
Lethal dose or concentration (LD, LC):
2207 mg/kg (oral, rat)
2152 mg/kg (oral, mouse)[2]
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).
☒N verify (what is checkY☒N ?)

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:[3]

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

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

Structure

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.[3][4]

References

  1. ^ a b Donaldson, J. D.; Puxley, D. C. (1972). "The crystal structure of tin(II) sulphate". Acta Crystallographica Section B: Structural Crystallography and Crystal Chemistry. 28 (3): 864–867. Bibcode:1972AcCrB..28..864D. doi:10.1107/S0567740872003322.
  2. ^ "Tin (inorganic compounds, as Sn)". Immediately Dangerous to Life or Health Concentrations (IDLH). National Institute for Occupational Safety and Health (NIOSH).
  3. ^ a b Greenwood, Norman N.; Earnshaw, Alan (1984). Chemistry of the Elements. Oxford: Pergamon Press. p. 451. ISBN 978-0-08-022057-4.
  4. ^ Donaldson, J. D.; Puxley, D. C. (1972). "The crystal structure of tin(II) sulphate". Acta Crystallographica Section B. 28 (3): 864–867. Bibcode:1972AcCrB..28..864D. doi:10.1107/S0567740872003322. ISSN 0567-7408.


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