Authors: Myrian F Castello Carolina V Grupioni Ronaldo S Nunes José Marques Luiz
Publish Date: 2014/07/10
Volume: 117, Issue: 3, Pages: 1145-1150
Abstract
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 Xray 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
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