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乙酸铈

乙酸铈
IUPAC名
Cerium(III) acetate
乙酸铈(III)
别名 醋酸铈
识别
CAS号 537-00-8(无水)  checkY
206996-60-3(水合)  checkY
性质
化学式 Ce(CH3COO)3
摩尔质量 317.26 g·mol⁻¹
外观 白色粉末
熔点 308℃(分解)
溶解性(其他溶剂) 可溶于乙醇
易溶于吡啶
不溶于丙酮[1]
相关物质
其他阳离子 乙酸镧
若非注明,所有数据均出自标准状态(25 ℃,100 kPa)下。

乙酸铈乙酸铈(III))化学式Ce(CH3COO)3,俗名醋酸铈,为可溶于水的白色粉末。其1.5水合物于133°C失水,得到无定形的无水物,无定形物在212°C发生相变得到晶体,并于286°C再次发生相变。[2]

制备

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碳酸铈(III)和50%乙酸水溶液反应得到[1]

Ce2(CO3)3 + 6 CH3COOH → 2 Ce(CH3COO)3 + 3 H2O + 3 CO2

性质

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乙酸铈可溶于乙醇(无水物)(其水合物难溶于乙醇),易溶于吡啶,难溶于丙酮[3]其热分解(310°C)会生成碱式乙酸铈,进一步分解得到Ce2O2CO3,继续加热生成CeO2和CO。[2]

参考资料

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  1. ^ 1.0 1.1 《无机化合物制备手册》.朱文祥 主编. 化学工业出版社.第十四章 碳族元素.P512.XIV-124 醋酸铈(III)
  2. ^ 2.0 2.1 Arii T, Kishi A, Ogawa M, et al. Thermal decomposition of cerium (III) acetate hydrate by a three-dimensional thermal analysis页面存档备份,存于互联网档案馆)[J]. Analytical sciences, 2001, 17(7): 875-880.
  3. ^ 《无机化合物合成手册》.第二卷.日本化学会 编. 曹惠民 译. 化学工业出版社. 1988.7第一版.【1260】稀土元素的乙酸盐.P582
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乙酸铈
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