Resumen

QUESADA-GONZALEZ, Omaida; LLOPIZ-YURELL, Julio Cesar  y  TORRES-TORRES, Enelio. Sample controlled thermal analysis and high resolution thermogravimetry. Influence of experimental conditions on calculated kinetic parameters. Rev Cub Quim [online]. 2016, vol.28, n.1, pp.350-363. ISSN 2224-5421.

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.

Palabras clave : Kinetics; CRTA; Hi Res ATG; BaCl₂·2H₂O.

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