Abstract
The differences in the kinetic equations used and the values of the apparent activation energy and frequency factor for the thermogravimetric dehydration of 2-ethylpyridinium metatungstate monohydrate have been obtained. Five different methods for the treatment of increasing temperature data have been attempted, taking into account 18 analytical forms of the f(α) or F(α) functions. One of these methods has been developed and checked for the first time in this work. The most probable mechanism is related to the F(α) expression, [-In(1−α)]. The E and A values obtained were 127–160 kJ mol −1 and 10 18−4×10 21 s −1 respectively.
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