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Influence of purity on the thermal stability of solid organic compounds

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Abstract

DSC method was used to study thermal stability of nitrocompounds. It was assumed the model to estimate stability of solid phase in which perfect solid phase is totally stable and amorphous-liquid domains connected with impurities decompose according to the kinetic model determined for the liquid phase above the melting point. The influence of sample purity on relative stability, which is k l/k s — ratio of decomposition rate constants in liquid and solid phase, at temperature 20 K below the melting point was predicted. The increase of liquid domains in solid phase causes decrease of k l/k s ratio (relative stability) at chosen temperature.

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Authors and Affiliations

  1. Department of Chemistry, Warsaw University of Technology Noakowskiego 3, 00-664, Warsaw, Poland

    A. Książczak, T. Książczak & T. Zielenkiewicz

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  1. A. Książczak
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  2. T. Książczak
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  3. T. Zielenkiewicz
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Correspondence to A. Książczak.

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Książczak, A., Książczak, T. & Zielenkiewicz, T. Influence of purity on the thermal stability of solid organic compounds. Journal of Thermal Analysis and Calorimetry 77, 233–242 (2004). https://doi.org/10.1023/B:JTAN.0000033208.42367.97

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  • DOI: https://doi.org/10.1023/B:JTAN.0000033208.42367.97

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