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

Viscosity and Diffusivity for the Ionic Liquid 1-Hexyl-3-methyl-imidazolium Bis(trifluoromethylsulfonyl)amide with 1-Octene

Ahosseini, A.[Azita], Weatherley, L. R.[Laurence R.], Scurto, A. M.[Aaron M.]
J. Chem. Eng. Data 2011, 56, 10, 3715-3721
ABSTRACT
In order to correlate and predict interfacial mass transfer rates for ionic liquids and organic components, transport properties are required at various temperatures and, importantly, compositions. Here, the viscosity of mixtures of 1-hexyl-3-methylimidazolium bis(trifluoromethylsulfonyl)amide ([HMIm][Tf2N]) with 1-octene to the liquid liquid saturation limit were measured at four different isotherms [(10, 25, 50, and 75) deg C]. The viscosity of a [HMIm][Tf2N] + 1-octene mixture decreases up to 33 % over the pure ionic liquid in the temperature range studied. The computed viscosity deviation ( excess viscosity ) demonstrates a negative trend throughout the composition range and diminishes with increasing temperature. The self-diffusivity of both 1-octene and [HMIm][Tf2N] (cation) were measured at (25 and 50) deg C and increased up to 40 % with increasing composition of 1-octene. The self-diffusivities were of the order of (10 11 and 10 10) m2*s 1 for the cation and 1-octene, respectively.
Compounds
# Formula Name
1 C12H19F6N3O4S2 1-hexyl-3-methylimidazolium bis[(trifluoromethyl)sulfonyl]imide
2 C8H16 oct-1-ene
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
  • Viscosity, Pa*s ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • CONPLT:UFactor:4
  • 4
  • POMD
  • 2
  • Self diffusion coefficient, m2/s ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • NMR spin-echo technique
  • 2
  • POMD
  • 2
  • Viscosity, Pa*s ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • CONPLT:UFactor:4
  • 4
  • POMD
  • 2
  • 1
  • Tracer diffusion coefficient, m2/s - 2 ; Liquid
  • Mole fraction - 2; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Liquid - 2
  • NMR
  • 10
  • POMD
  • 2
  • 1
  • Viscosity, Pa*s ; Liquid
  • Mole fraction - 2; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • CONPLT:UFactor:4
  • 20