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

• Tipo: Artigo em Livro de Atas de Conferência Internacional
• Data: 2009

Autores

Noelia Calvar (Autor) Outra; Begoña González (Autor) Outra; Maria Eugénia Macedo (Autor) FEUP

Ata de Conferência Internacional

Título: 24th European Symposium on Applied Thermodynamics

Páginas: 798-804

24th European Symposium on Applied Thermodynamics (ESAT)

Santiago de Compostela, Spain, June 27 - July 1st

Classificação Científica

FOS: Ciências da engenharia e tecnologias > Outras ciências da engenharia e tecnologias

Outras Informações

Abstract (EN): Osmotic coefficients of binary mixtures containing alcohols (ethanol, 1-propanol, 2- propanol) and the ionic liquid 1-ethyl-3-methylimidazolium ethylsulfate were determined at 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.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 7