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2694422 
Journal Article 
Thermal decomposition kinetics of potassium iodate Part I. The effect of particle size on the rate and kinetics of decomposition 
Muraleedharan, K 
2012 
1 
Journal of Thermal Analysis and Calorimetry
ISSN: 1388-6150
EISSN: 1588-2926 
109 
1 
237-245 
WOS:000305058900029 
The rate and kinetics of the thermal decomposition of potassium iodate (KIO3) has been studied as a function of particle size, in the range 63-150 mu m, by isothermal thermogravimetry at different temperatures, 790, 795, 800 and 805 K in nitrogen atmosphere. The theoretical and experimental mass loss data are in good agreement for the thermal decomposition of all samples of KIO3 at all temperatures studied. The isothermal decomposition of all samples of KIO3 was subjected to both model-fitting and model-free (isoconversional) kinetic methods of analysis. It has been observed that the activation energy values are independent of the particle size. Isothermal model-fitting analysis shows that the thermal decomposition kinetics of all the samples of KIO3 studied can be best described by the contracting cube equation. 
Contracting cube equation; Effect of particle size; Isothermal thermogranimetry; Potassium iodate; Kinetics and mechanism