Caesium selenate

Chemical compound From Wikipedia, the free encyclopedia

Caesium selanate is an inorganic compound, with the chemical formula of Cs2SeO4. It can form colourless crystals of the orthorhombic crystal system.

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caesium selenate
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.030.635 Edit this at Wikidata
EC Number
  • 233-712-7
  • InChI=1S/2Cs.H2O4Se/c;;1-5(2,3)4/h;;(H2,1,2,3,4)/q2*+1;/p-2
    Key: GIIBVORKUMBCJK-UHFFFAOYSA-L
  • [O-][Se](=O)(=O)[O-].[Cs+].[Cs+]
Properties
Cs2SeO4
Molar mass 408.77 g/mol
Appearance colourless crystals[1]
insoluble
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Properties

Caesium selenate can precipitate compounds such as CsLiSeO4·1⁄2H2O and Cs4LiH3(SeO4)4 in Cs2SeO4-Li2SeO4-H2O and its acidification system.[2] It can also form double salts with other metals, such as Cs2Mg(SeO4)2·6H2O, Cs2Co(SeO4)2·6H2O, etc.[3]

Preparation

Caesium selenate can be obtained from the reaction of caesium carbonate and selenic acid solution:[2]

Cs2CO3 + H2SeO4 → Cs2SeO4 + H2O + CO2↑

Caesium selenate can also be prepared by the neutralization reaction of selenic acid and caesium hydroxide:[1]

2 CsOH + H2SeO4 → Cs2SeO4 + 2 H2O

References

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