Praseodymium(III) carbonate

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Praseodymium carbonate
Names
IUPAC name
Praseodymium(III) carbonate
Identifiers
Properties
Pr2(CO3)3
Molar mass 461.849（anhydrous）605.977（octahydrate）
Appearance 绿色晶体（octahydrate）[1]
Melting point 分解
insoluble
（1.99×10-6mol/L）[2]
Related compounds
Other cations
 碳酸铈
碳酸钕
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

碳酸镨是一种无机化合物，化学式为Pr2(CO3)3。

制备

碳酸镨可以由三氯乙酸镨在70℃左右水解得到：[2][3]

2 Pr(C2Cl3O2)3 + 3 H2O → Pr2(CO3)3 + 6 CHCl3 + 3 CO2

用二氧化碳饱和的NaHCO3与氯化镨溶液反应，也可以得到碳酸镨。[3]

化学性质

碳酸镨可溶于酸，放出二氧化碳：

Pr2(CO3)3 + 6 H+ → 2 Pr3+ + 3 H2O + 3 CO2↑

参考资料

  1. ^ 《化学化工物性数据手册》（无机卷）. 化学工业出版社. P320. 7.2 碳酸盐. ISBN 7-5025-3591-8
  2. ^ a b 《无机化学丛书》. 第七卷 钪 稀土元素. 易宪武 黄春晖 等编.科学出版社. P174. 碳酸盐. ISBN 978-7-03-030574-9
  3. ^ a b 冯天泽. 稀土碳酸盐的制法、性质和组成. 《稀土》. 1989年第3期. pp.45～49

Template:镨化合物 Template:碳酸盐

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