Cerium(III) selenate is an inorganic compound with the chemical formula Ce2(SeO4)3. It can be obtained by reacting selenic acid and cerium(III) carbonate, and the solvent is evaporated to precipitate crystals.[2] The double salt CsCe(SeO4)2·4H2O can be obtained from mixing cerium(III) selenate and cesium selenate in an aqueous solution, and then evaporating and crystallizing the solution.[3]

Cerium(III) selenate

Identifiers
3D model (JSmol)
  • InChI=1S/2Ce.3H2O4Se/c;;3*1-5(2,3)4/h;;3*(H2,1,2,3,4)/q2*+3;;;/p-6
    Key: IRJPWWVGQHXWSR-UHFFFAOYSA-H
  • anhydrous: [O-][Se](=O)(=O)[O-].[O-][Se](=O)(=O)[O-].[O-][Se](=O)(=O)[O-].[Ce+3].[Ce+3]
  • pentahydrate: [O-][Se](=O)(=O)[O-].[O-][Se](=O)(=O)[O-].[O-][Se](=O)(=O)[O-].[Ce+3].[Ce+3].O.O.O.O.O
Properties
Ce2(SeO4)3
Molar mass 709.121
Density 4.456g/cm3 (octahydrate)[1]
39.5g(0 °C)
2.51(100 °C)
Related compounds
Other anions
cerium(III) sulfate
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

References edit

  1. ^ 化学化工物性数据手册(无机卷).刘光启 等主编.化学工业出版社.16.2 硒酸盐.P569
  2. ^ Wickleder, Mathias S. (2005), "Oxo-Selenates of rare earth elements", Handbook on the Physics and Chemistry of Rare Earths, Elsevier, pp. 45–105, retrieved 2023-12-05
  3. ^ OVANESYAN, S. M.; ISKHAKOVA, L. D.; TRUNOV, V. K. (1987-06-30). "ChemInform Abstract: Synthesis and Crystal Structure of CsLn(SeO4)2·4 H2O". ChemInform. 18 (26). doi:10.1002/chin.198726005. ISSN 0931-7597.