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

• Type: Article in International Scientific Journal
• Date: 2009

Authors

Noélia Calvar (Author) FEUP; Begoña González (Author) FEUP; Ángeles Domínguez (Author) Other; Eugénia A. Macedo (Author) FEUP

Journal

Title: Journal of Chemical Thermodynamics

Vol. 41

Pages: 1439-1445

ISSN: 0021-9614

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 17 Citations

ISI Web of Science

Scopus - 18 Citations

COMPENDEX

Scientific classification

FOS: Engineering and technology

CORDIS: Technological sciences

Other information

Authenticus ID: 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.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 7