Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

Thermodynamic and acoustic properties of binary mixtures of alcohols and alkanes. II. Density and heat capacity of (ethanol + n-heptane) under elevated pressures

Dzida, M.[Marzena], Marczak, W.[Wojciech]
J. Chem. Thermodyn. 2005, 37, 8, 826-836
ABSTRACT
The density of (ethanol + n-heptane) was measured in the whole composition range under atmospheric pressure and at temperatures from (293 to 318) K using a vibrating tube densimeter. The densities and heat capacities at pressures up to 90 MPa and for temperatures ranging from (293 to 318) K for (ethanol + n-heptane) mixtures were calculated using the speeds of sound under elevated pressures, reported in part I of this study, together with the densities and heat capacities at atmospheric pressure. The effect of pressure and temperature on the adiabatic compressibility, the excess molar volume and the excess molar heat capacity has been discussed.
Compounds
# Formula Name
1 C2H6O ethanol
2 C7H16 heptane
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
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • VIBTUB:UFactor:4
  • 6
  • POMD
  • 2
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • VIBTUB:UFactor:4
  • 6
  • POMD
  • 1
  • 2
  • Mass density, kg/m3 ; Liquid
  • Mole fraction - 1; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • VIBTUB:UFactor:4
  • 84