Artículos de revistas
Density, Refraction Index, and Vapor-Liquid Equilibria of n-Methyl-2-hydroxyethylammonium Hexanoate Plus (Methyl Acetate, Ethyl Acetate, or Propyl Acetate) at Several Temperatures
Registro en:
Industrial & Engineering Chemistry Research. Amer Chemical Soc, v. 51, n. 44, n. 14543, n. 14554, 2012.
0888-5885
WOS:000311191800026
10.1021/ie302343v
Autor
Alvarez, VH
Mattedi, S
Aznar, M
Institución
Resumen
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) This paper reports the densities, refraction indices, and vapor liquid equilibria for binary systems ester + n-triethyl-2-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. 51 44 14543 14554 Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) FAPESP [2006/03711-1]