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

Densities and Viscosities of [Bmim][PF6] and Binary Systems [Bmim][PF6] + Ethanol, [Bmim][PF6] + Benzene at Several Temperatures and Pressures: Determined by the Falling-Ball Method

Qiao, Y.[Yan], Yan, F.[Fangyou], Xia, S.[Shuqian], Yin, S.[Shen], Ma, P.[Peisheng]
J. Chem. Eng. Data 2011, 56, 5, 2379-2385
ABSTRACT
A falling-body viscometer was designed and manufactured to determine the densities and viscosities of liquids at high temperatures and pressures. The densities and viscosities for pure [bmim][PF6], [bmim][PF6] + ethanol, and [bmim][PF6] + benzene binary systems were determined in the temperature range of (313.2 to 413.2) K and in the pressure range of (0.1 to 25.0) MPa. The viscosities of [bmim][PF6] + ethanol, and [bmim][PF6] + benzene binary systems were correlated with temperature, pressure, and composition by correlation equations. The correlation coefficients (R) are 0.999 and 0.999 for [bmim][PF6] + ethanol and [bmim][PF6] + benzene systems, respectively.
Compounds
# Formula Name
1 C2H6O ethanol
2 C6H6 benzene
3 C8H15F6N2P 1-butyl-3-methylimidazolium hexafluorophosphate
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
  • 3
  • Viscosity, Pa*s ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • SPHERE:UFactor:6
  • 36
  • POMD
  • 3
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Pycnometric method
  • 36
  • POMD
  • 1
  • 3
  • Viscosity, Pa*s ; Liquid
  • Pressure, kPa; Liquid
  • Mole fraction - 1; Liquid
  • Temperature, K; Liquid
  • Liquid
  • SPHERE:UFactor:6
  • 90
  • POMD
  • 1
  • 3
  • Mass density, kg/m3 ; Liquid
  • Pressure, kPa; Liquid
  • Mole fraction - 1; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Pycnometric method
  • 90
  • POMD
  • 2
  • 3
  • Viscosity, Pa*s ; Liquid
  • Pressure, kPa; Liquid
  • Mole fraction - 2; Liquid
  • Temperature, K; Liquid
  • Liquid
  • SPHERE:UFactor:6
  • 111
  • POMD
  • 2
  • 3
  • Mass density, kg/m3 ; Liquid
  • Pressure, kPa; Liquid
  • Mole fraction - 2; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Pycnometric method
  • 112