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

Density, Viscosity, and Vapor Pressure Measurements of Water + Lithium Bis(trifluoromethylsulfonyl)imide Solutions

Gilbert, W. J. R.[William J. R.], Safarov, J.[Javid], Minnick, D. L.[David L.], Rocha, M. A., Hassel, E.[Egon], Shiflett, M. B.[Mark B.]
J. Chem. Eng. Data 2017, 62, 7, 2056-2066
ABSTRACT
The solubility, density (), viscosity (), and vapor pressure (P) of lithium bis(trifluoromethylsulfonyl)imide (LiTf2N) in water are evaluated. The maximum salt solublity for LiTf2N in water was determined to be between mass fractions (ws) of 0.8065 and 0.8217 at 295.15 K. The density () and viscosity () were evaluated at temperatures ranging from 298.15 to 373.15 K and mass fractions of up to 0.8024. Least-squares regression is used to correlate the viscosity and density data over the entire range of temperatures and concentrations. The vapor pressure of LiTf2N in water is determined for temperatures of 274.15 to 471.15 K and mass fractions of up to 0.8065. In addition, this work describes the solvent activity (as), osmotic coefficient (F), molal activity (+-), and enthalpy of vaporization (Hv). The osmotic coefficients were calculated using the second virial coefficient of water, and Pitzer Mayorga and Clausius Clapeyron models are used to evaluate the vapor pressure data.
Compounds
# Formula Name
1 C2F6LiNO4S2 lithium bis((trifluoromethyl)sulfonyl)amide
2 H2O water
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
  • 2
  • Vapor or sublimation pressure, kPa ; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Gas
  • Closed cell (Static) method
  • 62
  • POMD
  • 2
  • 1
  • Mass fraction - 1 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Crystal - 1
  • Titration method
  • 1
  • POMD
  • 2
  • 1
  • Mass density, kg/m3 ; Liquid
  • Mass fraction - 1; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Vibrating tube method
  • 16
  • POMD
  • 2
  • 1
  • Viscosity, Pa*s ; Liquid
  • Mass fraction - 1; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Capillary tube (Ostwald; Ubbelohde) method
  • 16
  • POMD
  • 2
  • 1
  • Vapor or sublimation pressure, kPa ; Liquid
  • Mass fraction - 1; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Gas
  • Closed Cell Method
  • 374