Effect of metal oxide additives on the thermal decomposition kinetics of potassium metaperiodate

The effect of additives (CuO, MnO 2 and TiO 2 ) on the thermal decomposition kinetics of potassium metaperiodate (KIO 4 ) to potassium iodate (KIO 3 ) has been studied in air by thermogravimetry under isothermal conditions. Irrespective of whether p- or n-type, the metal oxides show only a little or...

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Bibliographic Details
Published in:Journal of thermal analysis and calorimetry 2010-04, Vol.100 (1), p.177-181
Main Authors: Muraleedharan, K., Kannan, M. P., Gangadevi, T.
Format: Article
Language:English
Subjects:
Analysis
Analytical Chemistry
Calorimetry
Chemistry
Chemistry and Materials Science
Copper oxide
Cuprite
Decomposition
Exact sciences and technology
Inorganic Chemistry
Inorganic chemistry and origins of life
Kinetics and mechanism of reactions
Measurement Science and Instrumentation
Metal oxides
Oxides
Physical Chemistry
Polymer Sciences
Potassium
Thermal decomposition
Thermogravimetry
Titanium dioxide
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Summary:The effect of additives (CuO, MnO 2 and TiO 2 ) on the thermal decomposition kinetics of potassium metaperiodate (KIO 4 ) to potassium iodate (KIO 3 ) has been studied in air by thermogravimetry under isothermal conditions. Irrespective of whether p- or n-type, the metal oxides show only a little or no influence on the rate of the decomposition except for the small decrease when the oxide concentration is as high as 10 wt%. The rate law for the decomposition of KIO 4 (Prout–Tompkins model) remained unaffected by the additives.
ISSN:1388-6150
1588-2926
1572-8943
DOI:10.1007/s10973-009-0411-y