Cerium(III) acetate
_acetate.jpg)
| |
| Names | |
|---|---|
| IUPAC name
Cerium(III) acetate
| |
| Other names
Cerium triacetate
Cerium acetate | |
| Identifiers | |
| |
| ECHA InfoCard | 100.007.869 |
CompTox Dashboard (EPA)
|
|
| Properties | |
| Ce(CH3COO)3 | |
| Molar mass | 317.26 |
| Appearance | white powder |
| Melting point | 308℃ |
| Related compounds | |
Other cations
|
Lanthanum(III) acetate Praseodymium(III) acetate Neodymium acetate |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
| |
Cerium acetate is an inorganic compound with the chemical formula of Ce(CH3COO)3. It is a white powder that is soluble in water. Its 1.5 hydrate loses water at 133°C to obtain an amorphous anhydrate, and the amorphous phase changes to crystal at 212°C, and phase changes again at 286°C.[1]
Preparation
Cerium acetate can be prepared by reacting cerium(III) carbonate and 50% acetic acid in an aqueous solution:[2]
- Ce2(CO3)3 + 6 CH3COOH → 2 Ce(CH3COO)3 + 3 H2O + 3 CO2↑
Properties
Cerium acetate is soluble in water and ethanol in its anhydrous form (its hydrate is insoluble in ethanol), easily soluble in pyridine, and insoluble in acetone.[3] Its thermal decomposition (310 °C) will generate basic cerium(III) acetate, which will be further decomposed to obtain Ce2O2CO3, and continue to heat to generate CeO2 and CO.[1]
References
- ^ a b Arii T, Kishi A, Ogawa M, et al. Thermal decomposition of cerium (III) acetate hydrate by a three-dimensional thermal analysis Archived (Date missing) at jstage.jst.go.jp (Error: unknown archive URL)[J]. Analytical sciences, 2001, 17(7): 875-880.
- ^ 《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)
- ^ 《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