Thermal decompositions of scandium(III) m-nitrobenzoate,m-chlorobenzoate,m-hydroxybenzoate and m-aminobenzoate in air atmosphere |
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Authors: | W Brzyska R Kurpiel-Gorgol |
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Institution: | (1) Department of Inorganic and General Chemistry, Institute of Chemistry, Marie Curie-skodowska University, 20-031 Lublin, Poland |
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Abstract: | The conditions of thermal decomposition of scandium(III) m-nitrobenzoate, m-chlorobenzoate, m-hydroxybenzoate and m-aminobenzoate were studied. On heating, most of these carboxylates decompose in two steps; only scandium(III) 3-aminobenzoate decomposes in one step. The hydrated complexes first lose crystallization water and are then transformed to Sc2O3. The hydration of the complexes is accompanied by an endothermic effect, and the decomposition of the anhydrous complexes by a strong exothermic effect. Scandium(III) 3-nitrobenzoate decomposes explosively. |
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