Thermal behavior of Ca2+ and Cu2+ oxalates obtained by precipitation in homogeneous solution from dimethyl oxalate hydrolysis


Autoria(s): Castello, Myrian F.; Grupioni, Carolina V.; Nunes, Ronaldo S.; Luiz, Jose Marques
Contribuinte(s)

Universidade Estadual Paulista (UNESP)

Data(s)

18/03/2015

18/03/2015

01/09/2014

Resumo

Mixed calcium and copper oxalates, with different proportions of Ca2+ and Cu2+ ions, were precipitated by dimethyl oxalate hydrolysis in homogeneous solution. The compounds were evaluated by means of scanning electron microscopy, energy dispersive X-ray spectroscopy, thermogravimetry (TG), and differential thermal analysis (DTA). The results suggested quantitative precipitation without solid solution formation. From the TG and DTA curves, it was possible to evaluate the Ca2+ ion proportion in the solid phase and to confirm the precipitation of the individual species.

Formato

1145-1150

Identificador

http://dx.doi.org/10.1007/s10973-014-3926-9

Journal Of Thermal Analysis And Calorimetry. Dordrecht: Springer, v. 117, n. 3, p. 1145-1150, 2014.

1388-6150

http://hdl.handle.net/11449/116326

10.1007/s10973-014-3926-9

WOS:000340683300017

Idioma(s)

eng

Publicador

Springer

Relação

Journal Of Thermal Analysis And Calorimetry

Direitos

closedAccess

Palavras-Chave #Calcium oxalate #Copper oxalate #Dimethyl oxalate #Thermal analysis
Tipo

info:eu-repo/semantics/article