Caesium selenate

caesium selenate

Identifiers
CAS Number	10326-29-1^Y
3D model (JSmol)	Interactive image
ChemSpider	145356
ECHA InfoCard	100.030.635
EC Number	233-712-7
PubChem CID	165862
CompTox Dashboard (EPA)	DTXSID90889588
InChI InChI=1S/2Cs.H2O4Se/c;;1-5(2,3)4/h;;(H2,1,2,3,4)/q2*+1;/p-2 Key: GIIBVORKUMBCJK-UHFFFAOYSA-L
SMILES [O-][Se](=O)(=O)[O-].[Cs+].[Cs+]
Properties
Chemical formula	Cs2SeO4
Molar mass	408.77
Appearance	colourless crystals[1]
Solubility in water	insoluble
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

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

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

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]

References

1. F. J. Zúñiga, T. Breczewski, A. Arnaiz (1991-03-15). "Structure of caesium selenate". Acta Crystallographica Section C Crystal Structure Communications. 47 (3): 638–640. Bibcode:1991AcCrC..47..638Z. doi:10.1107/S0108270190009039. Archived from the original on 2018-06-03. Retrieved 2019-04-18.
2. David Havlíček, Zdeněk Mička, Václav Barbořák, Petr Šmejkal (2000). "caesium and caesium-Lithium Selenates". Collection of Czechoslovak Chemical Communications. 65 (2): 167–178. doi:10.1135/cccc20000167. ISSN 0010-0765. Archived from the original on 2019-12-06. Retrieved 2019-04-18.
3. V. Karadjova, D. Kovacheva, D. Stoilova (Nov 2014). "Study on the caesium Tutton compounds, Cs 2 M(XO 4 ) 2 ∙6H 2 O (M = Mg, Co, Zn; X = S, Se): Preparation, X-ray powder diffraction and infrared spectra". Vibrational Spectroscopy. 75: 51–58. doi:10.1016/j.vibspec.2014.09.006. Archived from the original on 2018-06-13. Retrieved 2019-04-18.