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Thermal decompositions of heavy lanthanide aconitates

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Abstract

The conditions of thermal decomposition of Tb(III), Dy, Ho, Er, Tm, Yb and Lu aconitates have been studied. On heating, the aconitates of heavy lanthanides lose crystallization water to yield anhydrous salts, which are then transformed into oxides. The aconitate of Tb(III) decomposes in two stages. First, the complex undergoes dehydration to form the anhydrous salt, which next decomposes directly to Tb4O7. The aconitates of Dy, Ho, Er, Tm, Yb and Lu decompose in three stages. On heating, the hydrated complexes lose crystallization water, yielding the anhydrous complexes; these subsequently decompose to Ln2O3 with intermediate formation of Ln2O2CO3.

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Brzyska, W., Ożga, W. Thermal decompositions of heavy lanthanide aconitates. Journal of Thermal Analysis 23, 231–234 (1982). https://doi.org/10.1007/BF01908505

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  • DOI: https://doi.org/10.1007/BF01908505

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