Excess properties and vapour pressure of 2-diethylaminoethylamine plus cyclohexane

Kamel Khimeche (1) , Fayrouz Djellouli (2) , Abdallah Dahmani (2) , Ilham Mokbel (3)

1 EMP - École Militaire Polytechnique [Alger]
2 Laboratoire Thermodynamique & Modelisation Moléculaire
3 TAP - Thermodynamique Analyse et Procédés

The vapour pressures of liquid (2-diethylaminoethylamine (2-DEEA) + cyclohexane) mixtures were measured by a static method between (T = 273.15 and T = 363.15) K at 10 K intervals. The excess molar enthalpies H-E at 303.15 K were also measured. The molar excess Gibbs energies G(E) were obtained with Barker's method and fitted to the Redlich-Kister equation. The Wilson equation was also used. Deviations between experimental and predicted G(E) and H-E, by using DISQUAC model, were evaluated. The proximity effect of N atoms produces a decrease of the interactional parameters.

Mots clés: Excess functions; (Vapour plus liquid) equilibria; Diamines; Cyclohexane; Disquac model; NORMAL ALKANE MIXTURES; BINARY-MIXTURES; THERMODYNAMIC PROPERTIES; MODIFIED UNIFAC; LIQUID EQUILIBRIA; TERTIARY-AMINES; N-HEPTANE; ENTHALPIES; PREDICTION; MODEL

Domaines: Chimie théorique et/ou physique; Chimie analytique

Kamel Khimeche, Fayrouz Djellouli, Abdallah Dahmani, Ilham Mokbel. Excess properties and vapour pressure of 2-diethylaminoethylamine plus cyclohexane. Journal of Chemical Thermodynamics, 2013, 56, pp.1-5. ⟨10.1016/j.jct.2012.07.005⟩. ⟨hal-00877518⟩