Thermophysical Study of Pyridinium-Based Ionic Liquids Sharing Ions

Reinado, Christian ; Pelegrina, Adrián ; Sánchez Rubio, Miguel ; Artigas, Héctor (Universidad de Zaragoza) ; Lafuente, Carlos (Universidad de Zaragoza)

Resumen: The thermophysical properties of three pyridinium-based ionic liquids sharing ions were measured at several temperatures (278.15-338.15) K and at atmospheric pressure (0.1 MPa). Three ionic liquids were studied: 1-butylpyridinium bis(trifluoromethyl-sulfonyl)imide, 1-hexylpyridinium bis(trifluoromethylsulfonyl)imide, and 1-hexylpyridinium tetrafluoroborate. The following thermophysical properties were measured: density, speed of sound, refractive index, surface tension, isobaric molar heat capacity, kinematic viscosity, and electrical conductivity. The thermophysical properties at atmospheric pressure were correlated with temperature, noting that the starting temperature for the speed of sound measurements depended on the ionic liquid. From these experimental results, some derived properties (isentropic compressibility, molar refraction, and dynamic viscosity) are calculated. These results together with those published previously for 1-butylpyridinium tetrafluoroborate are discussed. © 2022 American Chemical Society.

Idioma: Inglés

DOI: 10.1021/acs.jced.1c00925

Año: 2022

Publicado en: JOURNAL OF CHEMICAL AND ENGINEERING DATA 67, 3 (2022), 636-643
ISSN: 0021-9568

Factor impacto JCR: 2.6 (2022)

Categ. JCR: THERMODYNAMICS rank: 24 / 63 = 0.381 (2022) - Q2 - T2
Categ. JCR: CHEMISTRY, MULTIDISCIPLINARY rank: 103 / 178 = 0.579 (2022) - Q3 - T2
Categ. JCR: ENGINEERING, CHEMICAL rank: 83 / 141 = 0.589 (2022) - Q3 - T2

Factor impacto CITESCORE: 5.4 - Chemistry (Q2) - Chemical Engineering (Q2)

Factor impacto SCIMAGO: 0.625 - Chemistry (miscellaneous) (Q2) - Chemical Engineering (miscellaneous) (Q2)

Financiación: info:eu-repo/grantAgreement/ES/DGA/E31-20R

Tipo y forma: Article (Published version)

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