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Cerium(III) acetate
Names
	IUPAC name Cerium(III) acetate
	Other names Cerium triacetate; Cerium acetate
Identifiers
CAS Number	anhydrous: 537-00-8 ; sesquihydrate: 206996-60-3 ;
3D model (JSmol)	anhydrous: Interactive image; sesquihydrate: Interactive image;
ChemSpider	anhydrous: 10369;
ECHA InfoCard	100.007.869
EC Number	anhydrous: 208-654-0;
PubChem CID	anhydrous: 10826; sesquihydrate: 22833299;
UNII	anhydrous: YYB5291R2H; sesquihydrate: 779OQ1RB37;
CompTox Dashboard (EPA)	anhydrous: DTXSID40939067 DTXSID2027179, DTXSID40939067 ;
	InChI InChI=1S/3C2H4O2.Ce/c31-2(3)4;/h31H3,(H,3,4);/q;;;+3/p-3 Key: VGBWDOLBWVJTRZ-UHFFFAOYSA-K; sesquihydrate: InChI=1S/6C2H4O2.2Ce.3H2O/c61-2(3)4;;;;;/h61H3,(H,3,4);;;31H2/q;;;;;;2+3;;;/p-6 Key: FLEYCIHWCBGBLG-UHFFFAOYSA-H;
	SMILES anhydrous: CC(=O)[O-].CC(=O)[O-].CC(=O)[O-].[Ce+3]; sesquihydrate: CC(=O)[O-].CC(=O)[O-].CC(=O)[O-].[Ce+3].CC(=O)[O-].CC(=O)[O-].CC(=O)[O-].[Ce+3].O.O.O;
Properties
Chemical formula	Ce(CH3COO)3
Molar mass	317.26
Appearance	white powder
Melting point	308°C
Hazards
	GHS labelling:
Pictograms
Signal word	Warning
Hazard statements	H315, H319, H335, H410
Precautionary statements	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	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). Infobox references

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