Tin(II) oxalate explained

Tin(II) oxalate is an inorganic compound, a salt of tin and oxalic acid with the chemical formula .^[1] The compound looks like colorless crystals, does not dissolve in water, and forms crystalline hydrates.

Synthesis

Effect of oxalic acid solution on tin(II) oxide :

SnO+H _{2C} _{2O} _{4} \xrightarrow{ SnC _{2 O} _{4\downarrow} + H _{2O} }

Tin(II) oxalate can also be obtained by using tin(II) chloride and oxalic acid.^[2]

Properties

Tin (II) oxalate forms colorless crystals.

Insoluble in water and acetone. Soluble in dilute HCl, methanol, and petroleum ether.^[3]

Forms crystal hydrates of the composition SnCO•n HO, where n = 1 and 2.

Decomposes on heating:

SnC _{2O} _{4} \xrightarrow{380 ^{oC} SnO _{2} + 2 CO }

Applications

• Tin oxalate is used as a catalyst in the production of organic esters and plasticizers.^[4]
• It is used for dyeing and printing fabrics.
• The compound is also used in stannous oral care compositions.
• Few studies have reported on the use of tin(II) oxalate as an anode material for rechargeable lithium batteries.^[5]

Notes and References

1. Web site: Tin(II) oxalate 98% Sigma-Aldrich . . 5 August 2021 . en.
2. Nagirnyak . Svitlana V. . Lutz . Victoriya A. . Dontsova . Tatiana A. . Astrelin . Igor M. . Synthesis and Characterization of Tin(IV) Oxide Obtained by Chemical Vapor Deposition Method . . 26 July 2016 . 11 . 1 . 343 . 10.1186/s11671-016-1547-x . 27456501 . 4960077 . 2016NRL....11..343N . 1556-276X . free .
3. Web site: Registration Dossier - ECHA . . 5 August 2021.
4. Web site: 814-94-8 - Tin(II) oxalate - Stannous oxalate - 14113 - Alfa Aesar . . 5 August 2021.
5. Park . Jae-Sang . Jo . Jae-Hyeon . Yashiro . Hitoshi . Kim . Sung-Soo . Kim . Sun-Jae . Sun . Yang-Kook . Myung . Seung-Taek . Synthesis and Electrochemical Reaction of Tin Oxalate-Reduced Graphene Oxide Composite Anode for Rechargeable Lithium Batteries . . 9 August 2017 . 9 . 31 . 25941–25951 . 10.1021/acsami.7b03325 . 28718628 . 5 August 2021 . 1944-8252.