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碘酸铷

碘酸铷

Rubidumion Iodation

识别
CAS号 13446-76-9  checkY
SMILES
 
  • [Rb+].[O-]I(=O)=O
EC编号 236-604-8
性质
化学式 IO3Rb
摩尔质量 260.37 g·mol−1
外观 无色晶体
密度 4.33 g·cm−3[1]
熔点 分解[1]
溶解性 21 g·l−1 (23 °C)[2]
相关物质
其他阴离子 氯酸铷
溴酸铷
碘化铷
高碘酸铷
其他阳离子 碘酸
碘酸锂
碘酸钠
碘酸钾
碘酸铯
若非注明,所有数据均出自标准状态(25 ℃,100 kPa)下。

碘酸铷碘酸盐,化学式 RbIO3

制备

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碘酸铷可以由碳酸铷五氧化二碘反应而成。[3]

性质

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物理性质

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碘酸铷是三方晶系的,空间群 R3m (No. 160),晶格参数 a = 641.3 pm, c = 789.2 pm。[1]它的晶体结构和碘酸钾一样。[2]碘酸铷易溶于盐酸,且会变黄。[1]

化学性质

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碘酸铷加热分解成碘化铷氧气[1]

在热的碘酸铷和氢氧化铷中通入氯气,可以得到高碘酸铷[2]

碘酸铷和氢氟酸反应,形成二氟碘酸铷,有着正交晶系[4]

参考资料

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  1. ^ 1.0 1.1 1.2 1.3 1.4 Jean D'Ans, Ellen Lax: Taschenbuch für Chemiker und Physiker. 3. Elemente, anorganische Verbindungen und Materialien, Minerale, Band 3. 4. Auflage, Springer, 1997, ISBN 978-3-5406-0035-0, S. 686f. (《碘酸铷》在Google Books的內容。).
  2. ^ 2.0 2.1 2.2 R. Abegg, F. Auerbach: Handbuch der anorganischen Chemie. Verlag S. Hirzel, Bd. 2, 1908. S. 431 (Volltext).
  3. ^ Thomas Vipond Barker: II.?Note on the iodates and periodates of the alkali metals and the ammonium radicle. In: Journal of the Chemical Society, Transactions. 93, 1908, S. 15, doi:10.1039/CT9089300015.
  4. ^ R. F. Weinland, O. Lauenstein: "Über Fluorjodate" in Zeitschr. f. Anorg. Chem. 1899, 20(1), S. 30–39 (Volltext).
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碘酸铷
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