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Density, refraction index, and vapor–liquid equilibria of n-methyl-2-hydroxyethylammonium hexanoate plus (methyl acetate, ethyl acetate, or propyl acetate) at several temperatures / V. H. Alvarez in Industrial & engineering chemistry research, Vol. 51 N° 44 (Novembre 2012) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 51 N° 44 (Novembre 2012) . - pp. 14543-14554 Titre : Density, refraction index, and vapor–liquid equilibria of n-methyl-2-hydroxyethylammonium hexanoate plus (methyl acetate, ethyl acetate, or propyl acetate) at several temperatures Type de document : texte imprimé Auteurs : V. H. Alvarez, Auteur ; S. Mattedi, Auteur ; M. Aznar, Auteur Année de publication : 2013 Article en page(s) : pp. 14543-14554 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Phase  equilibrium  Liquid  vapor  equilibrium  Refraction  index  Density Résumé : This paper reports the densities, refraction indices, and vapor liquid equilibria for binary systems ester + n-methyl2-hydroxyethylammonium hexanoate (m-2-HEAH): methyl acetate (1) + m-2-HEAH (2), ethyl acetate (1) + m-2-HEAH, and propyl acetate (1) + m-2-HEAH (2). The excess molar volumes, deviations in the refraction index, apparent molar volume, and thermal expansion coefficient for the binary systems were fitted to polynomial equations. The Peng—Robinson equation of state, coupled with the Wong―Sandler mixing rule, is used to describe the experimental data. Since the predictive activity coefficient model COSMO-SAC is used in the Wong—Sandler mixing rule, the resulting thermodynamic model is a completely predictive one. The prediction results for the density and for the vapor―liquid equilibria have a deviation lower than 1.6% and 1.1%, respectively. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=26620369 [article] Density, refraction index, and vapor–liquid equilibria of n-methyl-2-hydroxyethylammonium hexanoate plus (methyl acetate, ethyl acetate, or propyl acetate) at several temperatures [texte imprimé] / V. H. Alvarez, Auteur ; S. Mattedi, Auteur ; M. Aznar, Auteur . - 2013 . - pp. 14543-14554. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 51 N° 44 (Novembre 2012) . - pp. 14543-14554 Mots-clés : Phase  equilibrium  Liquid  vapor  equilibrium  Refraction  index  Density Résumé : This paper reports the densities, refraction indices, and vapor liquid equilibria for binary systems ester + n-methyl2-hydroxyethylammonium hexanoate (m-2-HEAH): methyl acetate (1) + m-2-HEAH (2), ethyl acetate (1) + m-2-HEAH, and propyl acetate (1) + m-2-HEAH (2). The excess molar volumes, deviations in the refraction index, apparent molar volume, and thermal expansion coefficient for the binary systems were fitted to polynomial equations. The Peng—Robinson equation of state, coupled with the Wong―Sandler mixing rule, is used to describe the experimental data. Since the predictive activity coefficient model COSMO-SAC is used in the Wong—Sandler mixing rule, the resulting thermodynamic model is a completely predictive one. The prediction results for the density and for the vapor―liquid equilibria have a deviation lower than 1.6% and 1.1%, respectively. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=26620369