Journal of Thermal Analysis and Calorimetry

, Volume 132, Issue 2, pp 1183–1188 | Cite as

Experimental measurement and prediction by the UNIFAC and the DISQUAC models of the solid–liquid equilibrium diagrams of piperidine + benzene and piperidine + n-octane systems

  • Hocine Sifaoui
  • Fadhila Rabhi
  • Driss Dafri
  • Ahmed Ait-Kaci
  • Marek Rogalski


This work is a continuation of our researches on the study of thermodynamic properties of organic compound mixtures and made up of two sections: an experimental section and a theoretical section. The experimental solid–liquid equilibrium diagrams of binary systems: piperidine + benzene and piperidine + n-octane, measured at atmospheric pressure, have been obtained by means of an apparatus derived from that of Smit. The advantage of this apparatus compared to that of Rossini and that of Jacob is the higher measurement accuracy and the low amount of product used. In the theoretical section, in addition to the calculation of the liquidus curves in the ideal case, the DISQUAC model and the Dortmund-UNIFAC method were applied to the two mixtures to predict the liquidus curves and make a comparison.


Solid–liquid equilibrium diagrams Piperidine DISQUAC UNIFAC 


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Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2018

Authors and Affiliations

  1. 1.Laboratoire de Physico-chimie des Matériaux et Catalyse (LPCMC), Département de Chimie, Faculté des Sciences ExactesUniversité A. Mira de BejaiaBejaiaAlgérie
  2. 2.Laboratoire de chimie et physique – approche multi-échelle des milieux complexes, LCP-AMEMC, EA 4164Université de LorraineMetz Cedex 3France
  3. 3.Laboratoire de Thermodynamique et de Modélisation Moléculaire, Faculté de ChimieUniversité des Sciences et de Technologie Houari Boumediene (USTHB)Bab-Ezzouar, AlgerAlgérie

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