2014
DOI: 10.18362/bjta.v2i1.6
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Synthesis, Characterization and Thermal Behavior of Solid-State Compounds of Light Trivalent Lanthanide Malonates

Abstract: In this study, compounds of hydrated lanthanide malonates were synthesized by precipitation of sodium malonates ion. Quantitative studies of the compounds obtained in the solid state, as well as the thermal behavior of these compounds were performed by thermal analysis (TG-DTA and DSC). Additional complementary studies were also performed using X-ray diffraction by the powder method (XRD), Evolved Gas Analysis (EGA) and complexometric titration with EDTA. Thus, the compounds synthesized in this work, ranging f… Show more

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Cited by 3 publications
(2 citation statements)
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“…1a, d, the TG/DTG-DSC curves show that the thermal decomposition occurs in three overlapping steps; the first two corresponded to exothermic peaks, which were attributed to oxidation of the organic matter and/or of the gaseous product that evolved during thermal decomposition. [22]. Tests with hydrochloric acid solution on sample heated to the temperature of formation of this intermediate, as indicated by the corresponding TG/DTG-DSC curves, confirmed the evolution of CO 2 and the presence of the carbonaceous residue.…”
Section: Tg/dtg-dsc In Air Atmospherementioning
confidence: 60%
“…1a, d, the TG/DTG-DSC curves show that the thermal decomposition occurs in three overlapping steps; the first two corresponded to exothermic peaks, which were attributed to oxidation of the organic matter and/or of the gaseous product that evolved during thermal decomposition. [22]. Tests with hydrochloric acid solution on sample heated to the temperature of formation of this intermediate, as indicated by the corresponding TG/DTG-DSC curves, confirmed the evolution of CO 2 and the presence of the carbonaceous residue.…”
Section: Tg/dtg-dsc In Air Atmospherementioning
confidence: 60%
“…Tests with hydrochloric acid solution on samples heated up to the temperature of formation of this mixture, as indicated by the corresponding TG-DSC curves confirmed the formation of carbonate by the evolution of CO 2 and the presence of carbonaceous residue. The formation of carbonaceous residue and of derivative of carbonate had already been observed in the thermal decomposition of some light trivalent lanthanide oxamates 6 and other lanthanide complexes 18,19 .…”
Section: Dysprosium To Lutetium and Yttriummentioning
confidence: 75%