Please use this identifier to cite or link to this item:
https://hdl.handle.net/10216/104714
Author(s): | Noélia Calvar Elena Gómez Ángeles Domínguez Eugénia A. Macedo |
Title: | Determination and modelling of osmotic coefficients and vapour pressures of binary systems 1-and 2-propanol with C(n)MimNTf(2) ionic liquids (n=2, 3, and 4) at T=323.15 K |
Issue Date: | 2011 |
Abstract: | The osmotic and activity coefficients and vapour pressures of binary mixtures containing 1-propanol, or 2-propanol and imidazolium-based ionic liquids with bis(trifluoromethylsulfonyl)imide as anion (1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide, C(2)MimNTf(2), 1-methyl-3-propylimidazolium bis(trifluoromethylsulfonyl)imide, C(3)MimNTf(2), and 1-butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide, C(4)MimNTf(2)) were determined at T=323.15 K using the vapour pressure osmometry technique. The experimental osmotic coefficients were correlated using the extended Pitzer model modified by Archer and the MNRTL model, obtaining standard deviations lower than 0.033 and 0.064, respectively. The mean molal activity coefficients and the excess Gibbs free energy for the mixtures studied were calculated from the parameters of the extended Pitzer model modified by Archer. Besides the effect of the alkyl-chain of the cation, the effect of the anion can be assessed comparing the experimental results with those previously obtained for imidazolium ionic liquids with sulphate anions. (C) 2011 Published by Elsevier Ltd. |
Subject: | Ciências Tecnológicas, Ciências da engenharia e tecnologias Technological sciences, Engineering and technology |
Scientific areas: | Ciências da engenharia e tecnologias Engineering and technology |
URI: | https://hdl.handle.net/10216/104714 |
Related Information: | info:eu-repo/grantAgreement/FCT - Fundação para a Ciência e a Tecnologia/Programa de Financiamento Plurianual de Unidades de I&D/PEst-C/EQB/LA0020/2011/Projeto Estratégico-LA 20 - 2011-2012/LA 20 |
Document Type: | Artigo em Revista Científica Internacional |
Rights: | restrictedAccess |
Appears in Collections: | FEUP - Artigo em Revista Científica Internacional |
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