Osmotic coefficients of binary mixtures of four ionic liquids with ethanol or water at T = (313.15 and 333.15) 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: 11-16

ISSN: 0021-9614

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 41 Citations

ISI Web of Science

Scopus - 47 Citations

Scientific classification

FOS: Engineering and technology

CORDIS: Technological sciences

Other information

Authenticus ID: P-003-QTZ

DOI: 10.1016/j.jct.2008.08.011

Abstract (EN): Measurements of osmotic coefficients of BmimCl (1-butyl-3-methylimidazolium chloride) and HmimCl (1-hexyl-3-methylimidazolium chloride) with ethanol and EmimEtSO(4) (1-ethyl-3-methylimidazolium ethylsulfate) and EmpyEtSO(4) (1-ethyl-3-methylpyridinium ethylsulfate) with water at T = (313.15 and 333.15) K are reported in this work. Vapour pressure and activity results of the studied binary systems are obtained from experimental measurements. The results for the osmotic coefficients are correlated using the extended Pitzer model modified by Archer and the modified NRTL (MNRTL) model. The standard deviations obtained with both models are also given. The parameters obtained with the extended Pitzer model of Archer are used to calculate the mean molal activity coefficients.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 6