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五氧化二镎

五氧化二镎
IUPAC名
氧化镎(Ⅴ)
英文名 Dineptunium Pentaoxide
识别
CAS号 12143-01-0  checkY
性质
化学式 Np2O5
摩尔质量 554 g·mol⁻¹
相关物质
其他阳离子 二氧化镎
八氧化三镎
若非注明,所有数据均出自标准状态(25 ℃,100 kPa)下。

五氧化二镎是一种镎的氧化物,有放射性。

制备

五氧化二镎可由一水合三氧化镎的在300℃的热分解得到[1]

4 NpO3·H2O → 2 Np2O5 + O2↑ + 4 H2O↑

金属作用于熔融的高氯酸锂,也能得到五氧化二镎[2]

8 Np + 5 LiClO4 → 4 Np2O5 + 5 LiCl

性质

五氧化二镎可溶于稀的无机酸溶液,得到五价镎。[1]

参考资料

  1. ^ 1.0 1.1 《无机化学丛书》.第十卷 锕系 锕系后元素. 张青莲 主编. P215. 8.3.3 镎的氧化物
  2. ^ 《化学元素反应手册》.第十一章 周期系ⅢB族元素.第八节 镎
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