Sources of misunderstandings when evaluating kineticparameters from thermogravimetric (TG) curves are discussed. A simple method for calculating Arrhenius parameters, suitable for implementation on a PC connected to the TG apparatus, is presented. The results obtained with calcium oxalate are discussed with respect to their ability to predict thermal behaviour in several experimental conditions: agreement with experimentaldata is satisfactory. This is not so when using some literature-cited kineticparameters, which fail to represent the same TG curves from which they are extracted. Suggestions are derived for design of a modern TG apparatus connected to a PC.
Using thermoanalytical data. Part 1. The power of kinetic parameters determined from thermogravimetry to describe the experimental behaviour of the sample / U., BIADER CEIPIDOR; Bucci, Remo; Carunchio, Vincenzo Tito; Magri', Andrea. - In: THERMOCHIMICA ACTA. - ISSN 0040-6031. - STAMPA. - 158:1(1990), pp. 125-141. [10.1016/0040-6031(90)80060-C]
Using thermoanalytical data. Part 1. The power of kinetic parameters determined from thermogravimetry to describe the experimental behaviour of the sample.
BUCCI, Remo;CARUNCHIO, Vincenzo Tito;MAGRI', Andrea
1990
Abstract
Sources of misunderstandings when evaluating kineticparameters from thermogravimetric (TG) curves are discussed. A simple method for calculating Arrhenius parameters, suitable for implementation on a PC connected to the TG apparatus, is presented. The results obtained with calcium oxalate are discussed with respect to their ability to predict thermal behaviour in several experimental conditions: agreement with experimentaldata is satisfactory. This is not so when using some literature-cited kineticparameters, which fail to represent the same TG curves from which they are extracted. Suggestions are derived for design of a modern TG apparatus connected to a PC.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.