Thermochimica acta

The thermal behaviour of caesium periodate and the kinetics of the decomposition reaction

CA Strydom, LC Prinsloo

Index: Strydom, C. A.; Prinsloo, L. C. Thermochimica Acta, 1994 , vol. 241, p. 43 - 50

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Abstract

Abstract Using a heating rate of 5 C min− 1 CsIO 4 decomposes between 300 and 350 C according to the reaction 2CsIO 4 (s)→ 2CsIO 3 (s)+ O 2 (g), with an enthalpy change of− 57 kJ mol− 1 CsIO 4. The reaction occurs in two distinct parts. First a maximum number of nuclei (approx. 14 per μm 2) forms at a constant rate according to the power law. Then these nuclei grow according to the contracting area equation. Using isothermal decomposition data, an ...