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J. Phys. IV France
Volume 113, January 2004
Page(s) 51 - 54

J. Phys. IV France
113 (2004) 51
DOI: 10.1051/jp4:20040012

Modélisation des équilibres liquide/vapeur du système H 2O-H 2NCH 2CH 2NH 2 (EDA)

R. Tenu, C. Duriche, H. Delalu and J.J. Counioux

CNRS, Université Claude Bernard Lyon 1, Groupe SNPE - UMR "Hydrazines et Procédés", 43 Bd. du 11 novembre 1918, 69622 Villeurbanne Cedex, France

The liquid-vapour equilibria of the binary system water-ethylenediamine have been experimentally studied under isobaric conditions on the one hand at 100, 400 and 700 Torr, and on the other hand at 2,69 and 3,65 atm. The phase equilibrium modelling as a function of temperature and pressure, has been carried out by means of the quasiideal model, according to both two fundamental assumptions: the basicity of EDA and the solvation of chemical species that constitute the solution. The thermodynamic analysis of experimental data leads mainly to the following results:

© EDP Sciences 2004