Thermodynamics Research Center / ThermoML | Journal of Chemical and Engineering Data

Effect of Relative Humidity of Air on Density, Apparent Molar Volume, Viscosity, Surface Tension, and Water Content of 1-Ethyl-3-methylimidazolium Ethylsulfate Ionic Liquid

Torrecilla, J. S.[Jose S.], Rafione, T.[Tatiana], Garcia, J.[Julian], Rodriguez, F.[Francisco]
J. Chem. Eng. Data 2008, 53, 4, 923-928
ABSTRACT
The effect of relative humidity (RH) of air on the water content, density, apparent molar volume, dynamic viscosity, and surface tension of the ionic liquid 1-ethyl-3-methylimidazolium ethylsulfate has been studied. Physical property measurements were conducted at a temperature of 298.15 K, at atmospheric pressure, and in a RH range of (0 to 100) %. The experimental data were fit to first- and third-order polynomials that relate the physical properties with the relative humidity of air and the water content of [emim][EtSO4] with correlation coefficients higher than 0.9. The apparent molar volume was fit by the Redlich-Mayer equation with a relative standard deviation (o) less than 2 cm3 * mol-1. Excess molar volumes, viscosity, and surface tension deviations of a mole fraction average were calculated, and a second- and third-order Redlich Kister polynomial was applied (o equal to 0.01 cm3 * mol-1, 0.5 mPa * s, and 0.6 mN*m-1, respectively).
Compounds
# Formula Name
1 H2O water
2 C8H16N2O4S 1-ethyl-3-methylimidazolium ethyl sulfate
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
  • 2
  • Surface tension liquid-gas, N/m ; Liquid
  • Mass fraction - 1; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Gas
  • Pendant drop shape
  • 12
  • POMD
  • 1
  • 2
  • Viscosity, Pa*s ; Liquid
  • Mass fraction - 1; Liquid
  • Pressure, kPa; Liquid
  • Temperature, K; Liquid
  • Liquid
  • SPHERE:UFactor:24
  • 12
  • POMD
  • 1
  • 2
  • Mass density, kg/m3 ; Liquid
  • Mass fraction - 1; Liquid
  • Pressure, kPa; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Vibrating tube method
  • 12