Abstract

The thermal decomposition of basic copper carbonate (malachite; CuCO 3 .Cu(OH) 2 ) in a dynamic atmosphere of air or nitrogen was studied via TG, DTA and DEC at different heating rates. The non-isothermal kinetic and thermodynamic parameters were estimated. The decomposition course was thoroughly followed by examining the structural and morphological consequences of calcining the material at elevated temperatures by IR, XRD and SEM. The results obtained showed that in air CuCO 3 .Cu(OH) 2 released 0.5 H 2 O at 195 o C, transforming into the azurite structure 2CuCO 3 .Cu(OH) 2

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