Phase equilibrium properties of binary mixtures containing 1,3-pentanediamine (or 1,5-diamino-2-methylpentane) and water at several temperatures

Zahida Bouzina (1) , Amina Negadi (1) , Ilham Mokbel (2, 3) , Jacques Jose (2) , Latifa Negadi (4)

1 LATA2M - Laboratoire de Thermodynamique Appliquée et Modélisation Moléculaire
2 LMI - Laboratoire des Multimatériaux et Interfaces
3 UJM - Université Jean Monnet - Saint-Étienne
4 LATA2M - Laboratoire de Thermodynamique Appliquée et Modélisation Moléculaire

The vapor pressures of (1,3-pentanediamine + water), or (1,5-diamino-2-methylpentane + water) binary mixtures, and of pure 1,3-pentanediamine or 1,5-diamino-2-methylpentane components were measured by means of a static device at temperatures between (273 and 363) K. The data were correlated with the Antoine equation. From these data excess Gibbs functions (GE) were calculated for several constant temperatures and fitted to a three order Redlich–Kister equation using the Barker’s method. The (1,3-pentanediamine + water) or (1,5-diamino-2-methylpentane + water) binary systems exhibit negative deviations in GE for all investigated temperatures over the whole composition. Additionally, the NRTL UNIQUAC and Modified UNIFAC (Do) models have been used for the correlation or prediction of the total pressure.

Mots clés: (Vapor + liquid) equilibria; Diamines; Water; NRTL; UNIQUAC; Modified UNIFAC (Do)

Domaines: Chimie; Chimie organique

Zahida Bouzina, Amina Negadi, Ilham Mokbel, Jacques Jose, Latifa Negadi. Phase equilibrium properties of binary mixtures containing 1,3-pentanediamine (or 1,5-diamino-2-methylpentane) and water at several temperatures. The Journal of Chemical Thermodynamics, 2015, 84, pp.81-86. ⟨10.1016/j.jct.2014.12.008⟩. ⟨hal-02881617⟩