Synthesis and Study of Sr[HSiUO6]2·2H2O and Ba[HSiUO6]2·2H2O

被引:0
|
作者
N. G. Chernorukov
V. E. Kortikov
机构
[1] Lobachevskii Nizhni Novgorod State University,
关键词
Spectroscopy; Physical Chemistry; 2H2O; Hydrate; Inorganic Chemistry;
D O I
10.1023/A:1021119122303
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摘要
Uranosilicates of the general formula MII[HSiUO6]2·2H2O (MII = Sr, Ba) were prepared by hydrothermal synthesis. Previously unknown intermediate crystal hydrates were separated and studied by X-ray diffraction (XRD), IR spectroscopy, and thermal analysis. Polymorphic transitions α-Sr[HSiUO6]2 → β-Sr[HSiUO6]2 and α-Ba[HSiUO6]2 → β-Ba[HSiUO6]2 were revealed at 700 and 780°C, respectively.
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页码:446 / 451
页数:5
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