Caesium oxalate

Caesium oxalate (standard IUPAC spelling) dicesium oxalate, or cesium oxalate (American spelling) is the oxalate of caesium. Caesium oxalate has the chemicals formula of Cs2C2O4. Not much is known about caesium oxalate.

Caesium oxalate
Identifiers
3D model (JSmol)
ChemSpider
EC Number
  • 213-950-8
Properties
C2Cs2O4
Molar mass 353.829 g·mol−1
Hazards
GHS pictograms
GHS Signal word Warning
H302, H312
P264, P270, P280, P301+312, P302+352, P312, P322, P330, P363, P501
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Preparation

Caesium oxalate can be prepared by passing carbon monoxide and carbon dioxide over caesium carbonate at 380 °C:[1]

Cs2CO3 + CO + CO2 → Cs2C2O4 + CO2

Other alkali carbonates do not undergo transformation to oxalate.[1]

Chemical Reactions

Caesium oxalate can be reduced back into caesium carbonate and carbon dioxide by thermal decomposition.

Cs2C2O4 → Cs2CO3 + CO

Double salts

Compounds that contain caesium and another element in addition to the oxalate anion are double salts. The oxalate may form a complex with a transition metal that can make a salt with caesium.

Examples include: a caesium neptunium oxalate (CsNpO2C2O4•nH2O).[2]

References

  1. Kudo, Kiyoshi; Ikoma, Futoshi; Mori, Sadayuki; Komatsu, Koichi; Sugita, Nobuyuki (1997). "Synthesis of oxalate from carbon monoxide and carbon dioxide in the presence of caesium carbonate". Journal of the Chemical Society, Perkin Transactions 2 (4): 679–682. doi:10.1039/A607856G.
  2. Charushnikova, I. A.; Krot, N. N.; Polyakova, I. N. (May 2006). "Synthesis and crystal structure of double Np(V) cesium oxalate CsNpO2C2O4 · nH2O". Radiochemistry. 48 (3): 223–226. doi:10.1134/S1066362206030039. S2CID 92883386.
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