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Kinetics of thermal dissociation of basic aluminium ammonium sulfate in a hydrogen atmosphere

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Abstract

The rate of release of sulfur oxides from basic aluminium ammonium sulfate (BAAS) under isothermal, isobaric conditions in a hydrogen atmosphere was studied.

Twomethods of selection of theg(α) function which best describes the isothermal experimental data are discussed.

The first method is based on statistical criteria and the second one on the the use of a reduced-time scale. Kinetic parameters for the thermal decomposition of BAAS in a hydrogen atmosphere are reported.

Zusammenfassung

Unter isothermen, isobaren Bedingungen wurde die Geschwindigkeit der Freisetzung von Schwefeloxiden aus basischem Aluminiumammoniumsulfat (BAAS) untersucht.

Es werden zwei Verfahren zur Auswahl derjenigeng(α)-Funktion diskutiert, die die isothermen Ergebnisse am besten wiedergibt.

Das erste Verfahren beruht auf statistischen Kriterien, dem zweiten lag eine reduzierte-Zeitskala zugrunde. Kinetische Parameter für die thermische Zersetzung von BAAS in Wasserstoff werden beschrieben.

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Authors and Affiliations

  1. Institute of Chemistry, Plock Branch of Warsaw University of Technology, 09-400, Plock, Poland

    B. Pacewska & J. Pysiak

Authors
  1. B. Pacewska
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  2. J. Pysiak
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Dedicated to Professor Dr. H. J. Seifert on the occasion of his 60th birthday

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Pacewska, B., Pysiak, J. Kinetics of thermal dissociation of basic aluminium ammonium sulfate in a hydrogen atmosphere. Journal of Thermal Analysis 37, 1389–1399 (1991). https://doi.org/10.1007/BF01913476

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  • DOI: https://doi.org/10.1007/BF01913476

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