Experimental Measurements of Volumetric and Acoustic Properties of Binary Mixtures of 1-Butyl-3-methylimidazolium Hexafluorophosphate with Molecular Solvents

Author(s)

Hoga, Heloisa Emi ^[1] ; Olivieri, Gustavo Vieira ^[1] ; Torres, Ricardo Belchior ^[1]

Affiliation

^[1] Ctr Univ FEI, Dept Engn Quim, BR-09850901 Sao Bernardo Do Campo, SP - Brazil

• Document type: Journal article
• Source: JOURNAL OF CHEMICAL AND ENGINEERING DATA; v. 65, n. 7, p. 3406-3419, JUL 9 2020.
• Web of Science Citations: 0

Abstract

In this study, measurements regarding the density and speed of sound for binary liquid mixtures of the 1-butyl-3-methylimidazolium hexafluorophosphate ({[}BMIM]{[}PF6]) ionic liquid (+ methanol, or + acetonitrile, or + tetrahydrofuran, or + formamide, or + N,N-dimethylformamide, or + dimethylsulfoxide) were carried out as a function of the composition at temperatures between 288.15 and 313.15 K and atmospheric pressure. Experimental results allowed us to calculate the excess molar volume, V-m(E), and excess isentropic compressibility, kappa(E)(s), which were fit to a Myers-Scott-type polynomial. The results for the studied systems suggest that structural effects and chemical interactions must predominate over other possible effects, except for the system containing formamide in which physical effects may also be more important. (AU)

• FAPESP's process: 09/14556-5 - Volumetric, transport, and acoustic properties of binary systems containing ionic liquids: experimental study and modeling
• Grantee: Ricardo Belchior Tôrres
• Support type: Regular Research Grants
• FAPESP's process: 16/02652-3 - Experimental study and modeling of thermodynamics properties of binary systems containing {dimethyl carbonate (DMC) + alcohols} at high pressure
• Grantee: Gustavo Vieira Olivieri
• Support type: Scholarships in Brazil - Master