硒酸铯是一种无机化合物,化学式为Cs2SeO4,可以形成正交晶系的无色晶体。
制备
硒酸铯可由碳酸铯和硒酸溶液反应得到:[2]
![{\displaystyle {\ce {Cs2CO3 + H2SeO4 -> Cs2SeO4 + H2O + CO2}}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/6fde38d561b5df2296f0279fde2d200229ce144d)
![{\displaystyle \uparrow }](https://wikimedia.org/api/rest_v1/media/math/render/svg/ddb20b28c74cdaa09e1f101d426441da1996072f)
硒酸和氢氧化铯的中和反应也能制备硒酸铯:[1]
![{\displaystyle {\ce {2 CsOH + H2SeO4 -> Cs2SeO4 + 2 H2O}}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/e357daee5b8e49d00d9b368ecb94d683722c2fc8)
性质
硒酸铯在Cs2SeO4-Li2SeO4-H2O及其酸化体系中可以析出CsLiSeO4·1⁄2H2O、Cs4LiH3(SeO4)4等化合物。[2]它也可以和其它金属形成复盐,如Cs2Mg(SeO4)2·6H2O、Cs2Co(SeO4)2·6H2O等。[3]
参考文献
- ^ 1.0 1.1 F. J. Zúñiga, T. Breczewski, A. Arnaiz. Structure of caesium selenate. Acta Crystallographica Section C Crystal Structure Communications. 1991-03-15, 47 (3): 638–640 [2019-04-18]. doi:10.1107/S0108270190009039. (原始内容存档于2018-06-03).
- ^ 2.0 2.1 David Havlíček, Zdeněk Mička, Václav Barbořák, Petr Šmejkal. Cesium and Cesium-Lithium Selenates. Collection of Czechoslovak Chemical Communications. 2000, 65 (2): 167–178 [2019-04-18]. ISSN 0010-0765. doi:10.1135/cccc20000167. (原始内容存档于2019-12-06) (英语).
- ^ V. Karadjova, D. Kovacheva, D. Stoilova. Study on the cesium 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. 2014-11, 75: 51–58 [2019-04-18]. doi:10.1016/j.vibspec.2014.09.006. (原始内容存档于2018-06-13) (英语).