ESTIMATION OF RATE COEFFICIENTS FROM THE OVERALL AMOUNT OF MATERIAL REACTED AT VARIOUS SCAN RATES

A method to evaluate the temperature dependence of the reaction rate f rom the variation of the amount reacted at the end of a number of expe riments at various scan rates is deduced from the fundamental equation s of DTA, The method was applied to the synthesis of Paakkonenite and gave parameters in good agreement with those determined for the same r eaction by using other experimental data and the differential method o f Sharp and Wentworth. Furthermore, an empirical procedure previously used to get the same results is compared with the present elaboration. The parameters evaluated are reported and discussed.