Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

Vapor pressures, osmotic and activity coefficients for (LiBr + acetonitrile) between the temperatures (298.15 and 343.15) K

Nasirzadeh, K.[Karamat], Neueder, R.[Roland], Kunz, W.[Werner]
J. Chem. Thermodyn. 2004, 36, 6, 511-517
ABSTRACT
Precise vapor pressure data for pure acetonitrile and (LiBr + acetonitrile) are given for temperatures ranging from T=(298.15 to 343.15) K. The molality range is from m=(0.0579 to 0.8298) mol ? kg-1. The osmotic coefficients are calculated by taking into account the second virial coefficient of acetonitrile. The parameters of the extended Pitzer ion interaction model of Archer and the mole fraction-based thermodynamic model of Clegg-Pitzer are evaluated. These models accurately reproduce the available osmotic coefficients. The parameters of the extended Pitzer ion interaction model of Archer are used to calculate the mean molal activity coefficients.
Compounds
# Formula Name
1 BrLi lithium bromide
2 C2H3N acetonitrile
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
  • 1
  • Vapor or sublimation pressure, kPa ; Liquid
  • Temperature, K; Liquid
  • Molality, mol/kg - 1; Liquid
  • Liquid
  • Gas
  • CCELL:UFactor:0.5
  • 120