An investigation on the effect of structural variation on thermal decomposition of rare earth chromates(V).
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概要
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Non-isothermal decomposition kinetics of LaCrO<SUB>4</SUB>, PrCrO<SUB>4</SUB>, and NdCrO<SUB>4</SUB> have been investigated. In each case, first order decomposition takes place. The energy of activation, <I>E</I><SUB>a</SUB><SUP>*</SUP> has been evaluated by applying five different computational procedures based on the data of TG, DTA, and DTG. These values are fairly in good agreement with each other and the average activation energies per mole of the compounds are : LaCrO<SUB>4</SUB>: 240 kcal, PrCrO<SUB>4</SUB>: 180 kcal and NdCrO<SUB>4</SUB>: 170 kcal. The above trend in <I>E</I><SUB>a</SUB><SUP>*</SUP> has been rationalized by taking into consideration the packing of atoms in rare earth chromates(V).
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著者
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Roy Ajoy
Department of Inorganic Chemistry, Indian Association for the Cultivation of Science
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Chaudhury M.
Department of Inorganic Chemistry, Indian Association for the Cultivation of Science
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Nag K.
Department of Inorganic Chemistry, Indian Association for the Cultivation of Science