Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

PqT measurements and derived properties of liquid 1,2-alkanediols

Atilhan, M.[Mert], Aparicio, S.[Santiago]
J. Chem. Thermodyn. 2013, 57, 137-144
ABSTRACT
The densities of compressed liquid 1,2-alkanediols (C2, C3 and C4) were measured with a vibration tube densimeter over the temperature range from 278.15 K to 358.15 K and pressures up to 60 MPa, with an uncertainty of +-0.0012 g cm 3. Densities were correlated with pressure and temperature by the TRIDEN 10-parameter equation. Values of the isothermal compressibility, isobaric thermal expansivity and internal pressure were calculated from the experimental results. Reported data are compared with predictions obtained using the PC-SAFT equation of state. The influence of the carbon-chain lengths over the obtained thermophysical properties was studied.
Compounds
# Formula Name
1 C2H6O2 1,2-ethanediol
2 C3H8O2 1,2-propanediol
3 C4H10O2 1,2-butanediol
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
  • Vibrating tube method
  • 126
  • POMD
  • 2
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Vibrating tube method
  • 126
  • POMD
  • 3
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Vibrating tube method
  • 126