Actas de congresos
Thermoanalytical study of heavier trivalent lanthanides fumarates
Fecha
2013-08-01Registro en:
Journal of Thermal Analysis and Calorimetry, v. 113, n. 2, p. 739-744, 2013.
1388-6150
10.1007/s10973-012-2768-6
WOS:000321784900041
2-s2.0-84880508277
Autor
UFG Campus II
Universidade Estadual Paulista (Unesp)
Institución
Resumen
Solid-state heavier lanthanides fumarates compounds have been synthesized, and the compounds were characterized by employing simultaneous thermogravimetry and differential thermal analysis (TG-DTA), differential scanning calorimetry (DSC), Fourier transform infrared spectroscopy (FTIR), TG coupled to FTIR, elemental analysis, and complexometry. On heating, the dehydration occurs in a single and two consecutive steps and the thermal decomposition of the anhydrous compounds occurs in consecutive and/or overlapping steps, with formation of the respective oxides: Tb4O7 and Ln2O3 (Ln=Dy to Lu). The results also led to information about composition, thermal behavior, and the type of coordination of the isolated compounds. © 2012 Akadémiai Kiadó, Budapest, Hungary.