Effect of the temperature on the physical properties of pure 1-propyl 3-methylimidazolium bis(trifluoromethylsulfonyl)imide and characterization of its binary mixtures with alcohols

• Tipo: Artigo em Revista Científica Internacional
• Data: 2012

Autores

Elena Gómez (Autor) Outra; Noélia Calvar (Autor) FEUP; Maria Eugénia Macedo (Autor) FEUP; Ángeles Domínguez (Autor) Outra

Revista

Título: Journal of Chemical Thermodynamics

Vol. 45 Nº 1

Páginas: 9-15

ISSN: 0021-9614

Editora: Elsevier

Indexação

ISI Web of Knowledge - 44 Citações

ISI Web of Science

Scopus - 54 Citações

Classificação Científica

FOS: Ciências da engenharia e tecnologias

CORDIS: Ciências Tecnológicas

Projetos Associados

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

Outras Informações

ID Authenticus: P-002-DRP

DOI: 10.1016/j.jct.2011.08.028

Abstract (EN): In this paper, physical properties of a high purity sample of the ionic liquid 1-propyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide, [PMim][NTf(2)], and its binary mixtures with methanol, ethanol, 1-propanol, and 2-propanol were measured at atmospheric pressure. The temperature dependence of density, refractive index and speed of sound (293.15 to 343.15) K and dynamic viscosity (298.15 to 343.15) K were studied at atmospheric pressure by conventional techniques for the pure ionic liquid. For its mixtures with alcohols, density, speed of sound, and refractive index were measured at T = 298.15 K over the whole composition range. The thermal expansion coefficient of the [PMim][NTf(2)] was calculated from the experimental results using an empirical equation, and values of the excess molar volume, excess refractive index, and excess molar isentropic compressibility for the binary systems at the above mentioned temperature, were calculated and fitted to the Redlich-Kister equation. The heat capacity of the pure ionic liquid at T = 298.15 K was determined using DSC.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 7