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

• Type: Article in International Scientific Journal
• Date: 2012

Authors

Elena Gómez (Author) Other; Noélia Calvar (Author) FEUP; Maria Eugénia Macedo (Author) FEUP; Ángeles Domínguez (Author) Other

Journal

Title: Journal of Chemical Thermodynamics

Vol. 45 No. 1

Pages: 9-15

ISSN: 0021-9614

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 44 Citations

ISI Web of Science

Scopus - 54 Citations

Scientific classification

FOS: Engineering and technology

CORDIS: Technological sciences

Associated Projects

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

Other information

Authenticus ID: 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.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 7