Thermoanalytical study of the reaction of potassium carbonate with ferric oxide

Authors
Joseph, K Gnanasekaran, T
Citation
K. Joseph et T. Gnanasekaran, Thermoanalytical study of the reaction of potassium carbonate with ferric oxide, THERMOC ACT, 342(1-2), 1999, pp. 153-160
Citations number
10
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences
Journal title
THERMOCHIMICA ACTA
ISSN journal
00406031 → ACNP
Volume
342
Issue
1-2
Year of publication
1999
Pages
153 - 160
Database
ISI
SICI code
0040-6031(199912)342:1-2<153:TSOTRO>2.0.ZU;2-1
Abstract
The reaction of potassium carbonate with ferric oxide was investigated ther mogravimetrically. Both non-isothermal and isothermal conditions were used for the kinetic study of this reaction. The reaction between K2CO3 and Fe2O 3 yields KFeO2 and the reaction occurs at lower temperature than the decomp osition temperature of pure K2CO3. Arrhenius parameters were derived from t he experimental data and a reaction mechanism for the formation of KFeO2 is proposed. (C) 1999 Elsevier Science B.V. All rights reserved.