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溴酸镧

溴酸镧

识别
CAS号 28958-23-8(无水)  checkY
13465-18-4(九水)  checkY
性质
化学式 La(BrO3)3
摩尔质量 522.617(无水)
684.761(九水) g·mol⁻¹
溶解性 462.1 g(25℃,九水)[1]
相关物质
其他阴离子 氯酸镧
碘酸镧
其他阳离子 溴酸铈(III)
相关化学品 溴化镧
氧化镧
若非注明,所有数据均出自标准状态(25 ℃,100 kPa)下。

溴酸镧是一种无机化合物化学式为La(BrO3)3,极易溶于水。其水合物是无色晶体,100 °C分解为四水合物。无水物在更高温度分解,放出光和热。[2]

制备

[编辑]

溴酸镧可以由硫酸镧溴酸钡的复分解反应制得:

La2(SO4)3 + 3 Ba(BrO3)2 → 2 La(BrO3)3 + 3 BaSO4

参考资料

[编辑]
  1. ^ 《无机化学丛书》. 第七卷 钪 稀土元素. 易宪武 等主编. 科学出版社. P158. 表22.22 某些典型盐在水中的溶解度
  2. ^ Charles James, W. F. Langelier. THE BROMATES OF THE RARE EARTHS. PART II. THE BROMATES OF THE CERIUM GROUP AND YTTRIUM.. Journal of the American Chemical Society. 1909-08, 31 (8): 913–917 [2020-04-23]. ISSN 0002-7863. doi:10.1021/ja01938a007 (英语). 
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溴酸镧
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