Thermodynamics Research Center / ThermoML | International Journal of Thermophysics

Volumetric and Isentropic Compressibility Behavior of Ionic Liquid, 1-Propyl-3-Methylimidazolium Bromide in Acetonitrile, Dimethylformamide, and Dimethylsulfoxide at T = (288.15 to 308.15) K

Sadeghi, R.[Rahmat], Shekaari, H.[Hemayat], Hosseini, R.[Rahim]
Int. J. Thermophys. 2009, 30, 5, 1491-1509
ABSTRACT
Density and speed-of-sound data for 1-propyl-3-methylimidazolium bromide ([C3mim][Br]) + acetonitrile (MeCN), [C3mim][Br] + dimethylformamide (DMF), and [C3mim][Br] + dimethylsulfoxide (DMSO) binary mixtures in the dilute concentration region are reported at T = (288.15 to 308.15) K. From these data, apparent molar volume, isentropic compressibility, excess molar volume, and isentropic compressibility deviation values have been calculated. Negative deviations from the ideal behavior of both molar volume and isentropic compressibility have been observed for all systems investigated in this study. It has been found that deviations from ideal behavior for the [C3mim][Br] + MeCN system are larger than those for the [C3mim][Br] + DMF system which, in turn, are larger than those for the [C3mim][Br] + DMSO system. The results have been interpreted in terms of ion dipole interactions and structural factors of the ionic liquid and investigated organic solvents.
Compounds
# Formula Name
1 C2H3N acetonitrile
2 C2H6OS dimethyl sulfoxide
3 C3H7NO dimethylformamide
4 C7H13BrN2 1-methyl-3-propylimidazolium bromide
Datasets
The table above is generated from the ThermoML associated json file (link above). POMD and RXND refer to PureOrMixture and Reaction Datasets. The compound numbers are included in properties, variables, and phases, if specificied; the numbers refer to the table of compounds on the left.
Type Compound-# Property Variable Constraint Phase Method #Points
  • POMD
  • 1
  • Speed of sound, m/s ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • PULSEH::UFactor:2
  • 5
  • POMD
  • 1
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • VIBTUB::UFactor:12
  • 5
  • POMD
  • 2
  • Speed of sound, m/s ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • PULSEH::UFactor:2
  • 5
  • POMD
  • 2
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • VIBTUB::UFactor:12
  • 5
  • POMD
  • 3
  • Speed of sound, m/s ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • PULSEH::UFactor:2
  • 5
  • POMD
  • 3
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • VIBTUB::UFactor:12
  • 5
  • POMD
  • 4
  • Speed of sound, m/s ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • PULSEH:UFactor:2
  • 5
  • POMD
  • 4
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • VIBTUB:UFactor:12
  • 5
  • POMD
  • 1
  • 4
  • Speed of sound, m/s ; Liquid
  • Temperature, K; Liquid
  • Mass fraction - 4; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • PULSEH:UFactor:2
  • 75
  • POMD
  • 1
  • 4
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Mass fraction - 4; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • VIBTUB:UFactor:12
  • 75
  • POMD
  • 3
  • 4
  • Speed of sound, m/s ; Liquid
  • Temperature, K; Liquid
  • Mass fraction - 4; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • PULSEH:UFactor:2
  • 70
  • POMD
  • 3
  • 4
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Mass fraction - 4; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • VIBTUB:UFactor:12
  • 70
  • POMD
  • 2
  • 4
  • Speed of sound, m/s ; Liquid
  • Temperature, K; Liquid
  • Mass fraction - 4; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • PULSEH:UFactor:2
  • 65
  • POMD
  • 2
  • 4
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Mass fraction - 4; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • VIBTUB:UFactor:12
  • 65