Thermal behaviour studies of solid state compounds of cinnamylidenepyruvate with trivalent lanthanides and yttrium (III) in an atmosphere of CO2
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Data
2002-12-01
Autores
De Oliveira, José Dilson Silva
Fertonani, Fernando Luís [UNESP]
Melios, Cristo Bladimiros [UNESP]
Ionashiro, Massao [UNESP]
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Resumo
Solid state cinnamylidenepyruvate of trivalent lanthanides (except for promethium) and yttrium, were prepared. Thermogravimetry, derivative thermogravimetry (TG, DTG), differential scanning calorimetry (DSC), X-ray diffraction powder patterns and complexometry were used to characterize and to study the thermal behavior of these compounds in a dynamic CO2 atmosphere. The results obtained showed significative differences on the thermal stability and thermal decomposition of these compounds, with regard to the thermal behavior study in a dynamic air atmosphere.
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Cinnamylidenepyruvate, CO2 atmosphere, Lanthanides, Thermal behavior, Yttrium
Como citar
Ecletica Quimica, v. 27, p. 11-19.