Tin(II) acetate

Tin(II) acetate is the acetate salt of tin(II), with the chemical formula of Sn(CH3COO)2. It was first discovered in 1822.[1]

Tin(II) acetate
Names
Other names
Tin diacetate
Identifiers
3D model (JSmol)
ECHA InfoCard 100.010.306
EC Number
  • 211-335-9
UNII
  • InChI=1S/2C2H4O2.Sn/c2*1-2(3)4;/h2*1H3,(H,3,4);/q;;+2/p-2
    Key: PNOXNTGLSKTMQO-UHFFFAOYSA-L
  • CC(=O)[O-].CC(=O)[O-].[Sn+2]
Properties
Sn(CH3COO)2
Molar mass 236.80
Appearance white crystals
Density 2.310 g·cm−3
Melting point 182.75 °C (360.95 °F; 455.90 K)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Preparation

To obtain tin(II) acetate, tin(II) oxide is dissolved in glacial acetic acid and refluxed to obtain yellow Sn(CH3COO)2·2CH3COOH when cooled. The acetic acid can be removed by heating under reduced pressure, and the white Sn(CH3COO)2 crystals can be obtained by sublimation.[1]

Properties

Sn(CH3COO)2·2CH3COOH undergoes disproportionation and decomposition when heated under normal pressure, and products such as tin(IV) oxide and hydrogen are generated. The decomposition of anhydrous Sn(CH3COO)2 is to the blue-black tin(II) oxide.[2]

Anhydrous Sn(CH3COO)2 decomposes in water,[2] but complexes such as KSn(CH3COO2)3 and Ba[Sn(CH3COO)3]2 can be formed in alkali metal or alkaline earth metal acetates.[3]

References
  1. Varvara S. Stafeeva, Alexander S. Mitiaev, Artem M. Abakumov, Alexander A. Tsirlin, Artem M. Makarevich, Evgeny V. Antipov (November 2007). "Crystal structure and chemical bonding in tin(II) acetate". Polyhedron. 26 (18): 5365–5369. doi:10.1016/j.poly.2007.08.010. Archived from the original on 2020-02-12. Retrieved 2019-04-19.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  2. Donaldson, J. D., Moser, W., & Simpson, W. B. (1964). 1147. Tin (II) acetates. Journal of the Chemical Society, 5942-5947.
  3. Donaldson, J. D., & Knifton, J. F. (1966). Complex tin (II) acetates. Journal of the Chemical Society A: Inorganic, Physical, Theoretical, 332-336.
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