Sample controlled thermal analysis and high resolution thermogravimetry. Influence of experimental conditions on calculated kinetic parameters

Authors

  • Omaida Quesada-González
  • Julio Cesar Llópiz-Yurell
  • Enelio Torres-Torres

Abstract

Sample Controlled Thermal Analysis and High-resolution Thermogravimetry are used for to study the dehydration of BaCl2·2H2O. Model controlled by 2-dimensional interfacial advancement (R2) and activation energy of 26 kJ/mol were calculated when the technique SCTA was applied and a 3-dimensional diffusive kinetic model (D3) and activation energy of 40 kJ/mol were determined when Hi- Res ATG was applied. The influence of atmosphere and particularly of the residual pressure in environment of the samples on the calculated kinetic parameters was demonstrated.

 

Keywords: Kinetics, CRTA, Hi Res ATG, BaCl2·2H2O.

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Published

2016-05-19

How to Cite

Quesada-González, O., Llópiz-Yurell, J. C., & Torres-Torres, E. (2016). Sample controlled thermal analysis and high resolution thermogravimetry. Influence of experimental conditions on calculated kinetic parameters. Revista Cubana De Química, 28(1), 350–363. Retrieved from https://cubanaquimica.uo.edu.cu/index.php/cq/article/view/687

Issue

Vol. 28 No. 1 (2016)

Section

Artículos

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