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Names | |
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IUPAC name
Cerium(III) acetate
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Other names
Cerium triacetate
Cerium acetate | |
Identifiers | |
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3D model (JSmol)
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ChemSpider |
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ECHA InfoCard | 100.007.869 |
EC Number |
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PubChem CID
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UNII |
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CompTox Dashboard (EPA)
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Properties | |
Ce(CH3COO)3 | |
Molar mass | 317.26 |
Appearance | white powder |
Melting point | 308°C |
Hazards | |
GHS labelling:[1] | |
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Warning | |
H315, H319, H335, H410 | |
P261, P264, P264+P265, P271, P273, P280, P302+P352, P304+P340, P305+P351+P338, P305+P354+P338, P317, P319, P321, P332+P317, P337+P317, P362+P364, P391, P403+P233, P405, P501 | |
Related compounds | |
Other cations
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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).
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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 anhydrous form, and the amorphous phase changes to crystal at 212°C, and phase changes again at 286°C.[2]
Preparation
Cerium acetate can be prepared by reacting cerium(III) carbonate and 50% acetic acid in an aqueous solution:[3]
- 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.[4] Its thermal decomposition at 310 °C will generate basic cerium(III) acetate, which will be further decomposed to obtain Ce2O2CO3 (a basic carbonate), and continued heating generates CeO2 and CO.[2]
References
- ^ "Cerium triacetate". pubchem.ncbi.nlm.nih.gov.
- ^ a b Arii T, Kishi A, Ogawa M, et al. Thermal decomposition of cerium (III) acetate hydrate by a three-dimensional thermal analysis Archived 2018-10-24 at the Wayback Machine[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
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