Chemistry:Caesium selenate
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[[File:Cs+.svgFile:Cs+.svg |220px]]
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| Identifiers | |
|---|---|
| Properties | |
| Cs2SeO4 | |
| Molar mass | 408.77 |
| 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). | |
| 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]
- [math]\ce{ Cs2CO3 + H2SeO4 -> Cs2SeO4 + H2O + CO2 }[/math][math]\displaystyle{ \uparrow }[/math]
caesium selenate can also be prepared by the neutralization reaction of selenic acid and caesium hydroxide:[1]
- [math]\ce{ 2 CsOH + H2SeO4 -> Cs2SeO4 + 2 H2O }[/math]
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
- ↑ 1.0 1.1 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. doi:10.1107/S0108270190009039. http://scripts.iucr.org/cgi-bin/paper?S0108270190009039. Retrieved 2019-04-18.
- ↑ 2.0 2.1 David Havlíček, Zdeněk Mička, Václav Barbořák, Petr Šmejkal (2000). "caesium and caesium-Lithium Selenates" (in en). Collection of Czechoslovak Chemical Communications 65 (2): 167–178. doi:10.1135/cccc20000167. ISSN 0010-0765. http://cccc.uochb.cas.cz/65/2/0167/. Retrieved 2019-04-18.
- ↑ 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" (in en). Vibrational Spectroscopy 75: 51–58. doi:10.1016/j.vibspec.2014.09.006. https://linkinghub.elsevier.com/retrieve/pii/S0924203114001593. Retrieved 2019-04-18.
category:Caesium compounds
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