Osmotic coefficients and apparent molar volumes of 1-hexyl-3-methylimidazolium trifluoromethanesulfonate ionic liquid in alcohols

• Tipo: Artigo em Revista Científica Internacional
• Data: 2014

Autores

Emilio J. González (Autor) FEUP; Noelia Calvar (Autor) FEUP; Eugénia A. Macedo (Autor) FEUP

Revista

Título: Journal of Chemical Thermodynamics

Vol. 69

Páginas: 93-100

ISSN: 0021-9614

Editora: Elsevier

Indexação

ISI Web of Knowledge

ISI Web of Science

Scopus - 12 Citações

Classificação Científica

CORDIS: Ciências Tecnológicas

FOS: Ciências da engenharia e tecnologias

Projetos Associados

LA 20 - Projeto Estratégico-LA 20 - 2011-2012

LA 20 - PROJECTO ESTRATÉGICO - LA 20 - 2013-2014

Outras Informações

ID Authenticus: P-008-G6X

DOI: 10.1016/j.jct.2013.09.041

Abstract (EN): In this work, density for the binary mixtures of 1-hexyl-3- methylimidazolium trifluoromethanesulfonate in alcohols (1-propanol, or 2-propanol, or 1-butanol, or 2-butanol, or 1-pentanol) was measured at T = 323.15 K and atmospheric pressure. From this property, the corresponding apparent molar volumes were calculated and fitted to a Redlich-Meyer type equation. For these mixtures, the osmotic and activity coefficients, and vapor pressures of these binary systems were also determined at the same temperature using the vapor pressure osmometry technique. The experimental osmotic coefficients were modeled by the Extended Pitzer model of Archer. The parameters obtained in this correlation were used to calculate the mean molal activity coefficients and the excess Gibbs free energy for the studied mixtures.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 8