Thermophysical characterization of 1-propylpyridinium 1,1,1-trifluoromethanesulfonate, effect of alkyl chain length of the cation, and anion structure

Díez, Héctor ; Lafuente, Alberto ; Mrad, Sahar ; Lafuente, Carlos (Universidad de Zaragoza)

Resumen: Ionic liquids have attracted increasing attention as promising alternatives to traditional organic solvents due to their unique properties. Thermophysical properties such as density, speed of sound, refractive index, surface tension, isobaric molar heat capacity, kinematic viscosity, and electrical conductivity were measured for 1-propylpyridinium 1,1,1-trifluoromethanesulfonate over a wide temperature range and at atmospheric pressure. Volumetric properties were also determined at temperatures (283.15 - 338.15) K and at pressures up to 65.0 MPa. From these experimental data, some derived properties were calculated. Moreover, the influence of the chemical structure on these properties was investigated through comparing them with ionic liquids of common anion, ethylpyridinium 1,1,1-trifluoromethanesulfonate and 1-butylpyridinium 1,1,1-trifluoromethanesulfonate and an ionic liquid of common cation, 1-butylpyridinium tetrafluroborate.

Idioma: Inglés

DOI: 10.1016/j.fluid.2023.113900

Año: 2023

Publicado en: FLUID PHASE EQUILIBRIA 574 (2023), 113900 [11 pp.]
ISSN: 0378-3812

Financiación: info:eu-repo/grantAgreement/ES/DGA/E31-23R

Tipo y forma: Artículo (Versión definitiva)

Área (Departamento): Área Química Física (Dpto. Química Física)