Excess properties and vapor pressure of 2-diethylaminoethylamine plus n-heptane

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 vapor pressures of liquid [2-diethylaminoethylamine (2-DEEA) + n-heptane] mixtures were measured by a static method between T = (273.15 and 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. The molar excess Gibbs energies and the molar excess enthalpies were used to test the applicability of group-contribution models, including the modified UNIFAC model in the versions of Larsen and Gmehling and the Disquac model. Particularly, the proximity effect of N atoms was analyzed.

Mots clés: NORMAL ALKANE MIXTURES; BINARY-MIXTURES; LIQUID-EQUILIBRIA; MODIFIED UNIFAC; THERMODYNAMIC PROPERTIES; PHASE-EQUILIBRIA; TERTIARY-AMINES; CYCLOHEXANE; ENTHALPIES; PREDICTION

Domaines: Chimie analytique; Chimie théorique et/ou physique

Kamel Khimeche, Fayrouz Djellouli, Abdallah Dahmani, Ilham Mokbel. Excess properties and vapor pressure of 2-diethylaminoethylamine plus n-heptane. Journal of Chemical and Engineering Data, 2011, 56 (12), pp.4972-4977. ⟨10.1021/je200820v⟩. ⟨hal-00877503⟩