Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

The (water + acetonitrile) mixture revisited: A new approach for calculating partial molar volumes

Grande, M. d. C.[Maria del C.], Julia, J. A.[Jorge Alvarez], Barrero, C. R.[Carmen R.], Marschoff, C. M.[Carlos M.], Bianchi, H. L.[Hugo L.]
J. Chem. Thermodyn. 2006, 38, 6, 760-768
ABSTRACT
Density and viscosity of (water + acetonitrile) mixtures were measured over the whole composition range at the temperatures: (298.15, 303.15, 308.15, 313.15, and 318.15) K. A new mathematical approach was developed which allows the calculation of the derivatives of density with respect to composition avoiding the appearance of local discontinuities. Thus, reliable partial molar volumes and thermal expansion coefficients were obtained.
Compounds
# Formula Name
1 H2O water
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
  • Viscosity, Pa*s ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • CAPTUB::UFactor:2
  • 5
  • POMD
  • 2
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • VIBTUB:UFactor:16
  • 5
  • POMD
  • 2
  • 1
  • Viscosity, Pa*s ; Liquid
  • Temperature, K; Liquid
  • Mole fraction - 2; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • CAPTUB:UFactor:2
  • 80
  • POMD
  • 2
  • 1
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Mole fraction - 2; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • VIBTUB:UFactor:16
  • 75