(Solid + liquid) equilibria in (anthracene and

S. Besbes-Hentati1*, C. Marhegh1, M. Bouvet2, H. Said1

1 Laboratoire de Thermodynamique et d’Electrochimie, Département de Chimie, Faculté des Sciences de Bizerte. Zarzouna 7021, Bizerte, Tunisia

2 Laboratoire de Chimie Inorganique et Matériaux Moléculaires, Ecole Supérieure de Physique et Chimie Industrielles, 10 rue Vauquelin, 75231 Paris Cedex 05, France.

* Corresponding author. E-mail : salma.hentati@fsb.rnu.tn

Received : 10 March 2002; revised version accepted : 20 June 2002


Experimental phase diagram of binary system of two big molecules anthracene (ANT) and (TMHTA) have been studied. The thermal properties of the mixtures and their variation are detected by differential scanning calorimetry. This experimental study shows a simple eutectic system.

A semi-empirical equation of a stoichiometric phase liquidus curve [1-3] was applied to the ANT-TMHTA system, the liquidus was recalculated and the thermodynamic functions characterizing the melting of the pure compound were obtained.

The values of , andrelated to the fusion of TMHTA are 23,9 kJ mol-1, 47,7 J mol-1K-1 and 44,0 J mol-1K-1 respectively at the melting point of 501,4 K.

Keywords: phase diagrams; binary systems; anthracene;; DSC; ; ; .

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