Kinetic analysis of the thermal decomposition of synthetic malachite by CRTA

Citation
N. Koga et al., Kinetic analysis of the thermal decomposition of synthetic malachite by CRTA, J THERM ANA, 60(3), 2000, pp. 943-954
Citations number
30
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences
Journal title
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
ISSN journal
13886150 → ACNP
Volume
60
Issue
3
Year of publication
2000
Pages
943 - 954
Database
ISI
SICI code
1388-6150(2000)60:3<943:KAOTTD>2.0.ZU;2-8
Abstract
The kinetic behavior of the thermal decomposition of synthetic malachite wa s investigated by means of CRTA under different conditions of reduced press ure, flowing gases and quasi-isobaric atmospheres. The thermal decompositio n was found to proceed at lower temperatures under the influence of the sel f-generated gases, CO2 and H2O. From a viewpoint of chemical equilibrium, t he normal and opposite effects on the overall kinetics were observed for th e self-generated CO2 and H2O, respectively. The complexity of the present r eaction is also reflected by the variations of the apparent kinetic paramet ers which depend on the applied and self-generated atmospheric conditions. The practical usefulness of CRTA when applied to a complicated thermal deco mposition is discussed as exemplified by the kinetic approaches to the pres ent reaction.