6533b85bfe1ef96bd12bb40c

RESEARCH PRODUCT

Ultrasonic and Volumetric Properties of 1-Ethyl-3-methylimidazolium Trifluoromethanesulfonate Ionic Liquid with 2-Propanol or Tetrahydrofuran at Several Temperatures

Francisco J. LlopisVicenta González-alfaroA. Vicent OrchillésAntoni Martínez-andreuErnesto Vercher

subject

General Chemical EngineeringAnalytical chemistryGeneral ChemistryPropanolchemistry.chemical_compound1-ethyl-3-methylimidazoliumMolar volumechemistrySpeed of soundIonic liquidOrganic chemistryUltrasonic sensorTrifluoromethanesulfonateTetrahydrofuran

description

Densities and speeds of sound of 1-ethyl-3-methylimidazolium trifluoromethanesulfonate mixtures with 2-propanol and tetrahydrofuran (THF), as well as of the pure components, have been measured over the whole range of compositions at T = (278.15 to 328.15) K and P = (101 ± 2) kPa. From these experimental data, the excess molar volume, excess speed of sound, and excess isentropic compressibility have been calculated and fitted to an extended version of the Redlich–Kister equation, which takes into account the dependence on composition and temperature simultaneously. The Prigogine–Flory–Patterson theory has also been used to explain the behavior of these systems.

https://doi.org/10.1021/je200609g