Vapour pressures and osmotic coefficients of binary mixtures of 1-ethyl-3-methylimidazolium ethylsulfate and 1-ethyl-3-methylpyridinium ethylsulfate with alcohols at T=323.15 K

• Tipo: Artigo em Revista Científica Internacional
• Data: 2009

Autores

Noélia Calvar (Autor) FEUP; Begoña González (Autor) FEUP; Ángeles Domínguez (Autor) Outra; Eugénia A. Macedo (Autor) FEUP

Revista

Título: Journal of Chemical Thermodynamics

Vol. 41

Páginas: 1439-1445

ISSN: 0021-9614

Editora: Elsevier

Indexação

ISI Web of Knowledge - 17 Citações

ISI Web of Science

Scopus - 18 Citações

COMPENDEX

Classificação Científica

FOS: Ciências da engenharia e tecnologias

CORDIS: Ciências Tecnológicas

Outras Informações

ID Authenticus: P-003-E0M

DOI: 10.1016/j.jct.2009.06.024

Abstract (EN): Osmotic coefficients of binary mixtures containing alcohols (ethanol, 1-propanol, and 2-propanol) and the ionic liquids 1-ethyl-3-methylimidazolium ethylsulfate and 1-ethyl-3-methylpyridinium ethylsulfate were determined at T = 323.15 K. Vapour pressure and activity coefficients of the studied systems were calculated from experimental data. The extended Pitzer model modified by Archer, and the modified NRTL model (MNRTL) were used to correlate the experimental data, obtaining standard deviations lower than 0.012 and 0.031, respectively. The mean molal activity coefficients and the excess Gibbs free energy of the studied binary mixtures were calculated from the parameters obtained with the extended Pitzer model of Archer. (C) 2009 Published by Elsevier Ltd.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 7