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Journal of thermal analysis

, Volume 28, Issue 1, pp 147–153 | Cite as

Isobaric thermoanalytical study of the decomposition process of interstitial graphite-Iron(III) chloride compounds

  • V. L. Solozhenko
  • I. V. Arkhangelsky
  • Ya. A. Kalashnikov
  • N. A. Chernova
Article

Abstract

First-step and second-step interstitial graphite-FeCl3 compounds were studied by isobaric thermal analysis in the temperature interval of 298 ... 750 K and pressure interval of 10 ... 700 Torr. ΔH0 and ΔS0 values were obtained for the processes

C6FeCI3 → 0.5 C12FeCI3 + 0.5 FeCl3(s) C6FeCl3 → 6C + FeCl3(s) and C12FeCl3 → 12 C + FeCl3(s)

It was demonstrated that the thermal decomposition process of the interstitial graphite compounds investigated proceeds in stages. Temperature dependence of the heat capacity of the studied compounds was determined in the temperature interval of 298 ... 570 K.

Keywords

Polymer Chloride Physical Chemistry Graphite Inorganic Chemistry 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Zusammenfassung

Interstitielle Graphit-FeCl3-Verbindungen wurden im Temperaturbereich von 298–750 K und im Druckbereich von 10–700 Torr mittels isobarer thermischer Analyse untersucht. Für die Reaktionen

C6FeCl3 → 0.5 C12FeCl3 + 0.5 FeCl3(s), C6FeCl3 → 6C + FeCl3(s) und C12FeCl3 → 12 C + FeCl3(s)

Wurden die ΔH0- und ΔS0-Werte ermittelt. Die thermische Zersetzung der untersuchten interstitiellen Graphitverbindungen verläuft in mehreren Stufen. Die Temperaturanhängigkeit der Wärmekapazität der untersuchten Verbindungen wurde im Temperaturbereich von 298–570 K bestimmt.

Резюме

Проведено изобарнот ермоаналитическое исследование процес сов разложения ССГ с FeCl3 I и II ступеней в ин тервале температур 298– 750 K и давлений 10–700 мм рт. ст. Определены ΔH0 (кДж) и ΔS0 (Дж/К) следующих проц ессов:

C6FeCl3=0.5 C12FeCl3 + 0.5 FeCl3(тв.) ΔH 298 0 =63±8 ΔS 298 0 =83±15 C6FeCl3=6 C + FeCl3(тв.) ΔH 298 0 =91±13 ΔS 298 0 =116±23 C12FeCl3=12 C + FeCl3(тв.) ΔH 298 0 =56±10 ΔS 298 0 =64±14

Показано, что процесс термического разлож ения слоистого соединени я протекает стадийно. Определены температ урные зависимости те плоемкостей исследуемых соедине ний в температурном интервале 298–570 K.

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Copyright information

© Wiley Heyden Ltd., Chichester and Akadémiai Kiadó, Budapest 1983

Authors and Affiliations

  • V. L. Solozhenko
    • 1
  • I. V. Arkhangelsky
    • 1
  • Ya. A. Kalashnikov
    • 1
  • N. A. Chernova
    • 1
  1. 1.Chemical FacultyMoscow State UniversityMoscowU.S.S.R.

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