Misplaced Pages

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/c3*1-2(3)4;/h3*1H3,(H,3,4);/q;;;+3/p-3Key: VGBWDOLBWVJTRZ-UHFFFAOYSA-K sesquihydrate: InChI=1S/6C2H4O2.2Ce.3H2O/c6*1-2(3)4;;;;;/h6*1H3,(H,3,4);;;3*1H2/q;;;;;;2*+3;;;/p-6Key: FLEYCIHWCBGBLG-UHFFFAOYSA-H
SMILES anhydrous: CC(=O).CC(=O).CC(=O). sesquihydrate: CC(=O).CC(=O).CC(=O)..CC(=O).CC(=O).CC(=O)..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 , 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.

Preparation

Cerium acetate can be prepared by reacting cerium(III) carbonate and 50% acetic acid in an aqueous solution:

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. 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.

References

1. "Cerium triacetate". pubchem.ncbi.nlm.nih.gov.
2. ^ 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. Analytical sciences, 2001, 17(7): 875-880.
3. 《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)
4. 《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

• Cerium(III) compounds
• Acetates