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The use of the temperature signal and its derivative in a TG-DTA simultaneous unit

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Abstract

Simultaneous TG-DTA units have a work station which allows plots to be made of temperature against time, as well as the conventional TG and DTA plots. These time-temperature plots and their derivatives can be used to show details of both exothermic and endothermic events. The melting behavior of zinc is used as illustrative of endothermic phase changes. Solid-solid transitions are exemplified by noting the transitions in quartz. Examples of chemical reactions being treated to temperature-time plots are the decomposition's of zinc oxalate in nitrogen (an endothermic event) and the oxidation of carbon black in air (a sustained exothermic event). This wide selection of exothermic and endothermic events serves to illustrate the details which can be drawn from any thermogravimetric plot irrespective of the other associated equipment present, which serves to reinforce the data presented in the present study.

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Authors and Affiliations

  1. Department of Chemistry and College of Pharmacy, University of Toledo, 43606, Toledo, OH, USA

    P. Aggarwal & D. Dollimore

Authors
  1. P. Aggarwal
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  2. D. Dollimore
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Aggarwal, P., Dollimore, D. The use of the temperature signal and its derivative in a TG-DTA simultaneous unit. Journal of Thermal Analysis 50, 719–726 (1997). https://doi.org/10.1007/BF01979202

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  • DOI: https://doi.org/10.1007/BF01979202

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