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

Equilibrium Phase Densities, Interfacial Tensions for the Ethane + n-Pentane System at 294.15 K

Nilssen, H. N.[Hui N.], Fredheim, A. O.[Arne O.], Berg, O. J.[Ole J.], Solbraa, E.[Even], Kvamme, B.[Bjorn]
J. Chem. Eng. Data 2011, 56, 5, 2128-2132
ABSTRACT
The equilibrium phase densities and interfacial tensions of the binary mixture (ethane + n-pentane) have been measured simultaneously using the pendant drop method at 294.15 K. The experimental pressure was in the range of (6 to 30) bar. The measured phase densities are compared with calculated equilibrium densities by applying the GERG2004 equation. The deviations of the measured interfacial tension at each experimental condition are calculated on the basis of ISO combined standard uncertainty calculation recommendations. No open interfacial tension data for the system have been reported at any isothermal conditions. The measurement results extend the range of previous interfacial tension data of the hydrocarbon mixtures in the open literature.
Compounds
# Formula Name
1 CH4 methane
2 C2H6 ethane
3 C5H12 pentane
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
  • 3
  • Surface tension liquid-gas, N/m ; Liquid
  • Pressure, kPa; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Gas
  • Pendant drop shape
  • 15
  • POMD
  • 1
  • 3
  • Mass density, kg/m3 ; Liquid
  • Pressure, kPa; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Gas
  • Vibrating tube method
  • 15
  • POMD
  • 1
  • 3
  • Mass density, kg/m3 ; Gas
  • Pressure, kPa; Gas
  • Temperature, K; Gas
  • Gas
  • Liquid
  • Vibrating tube method
  • 15
  • POMD
  • 2
  • 3
  • Surface tension liquid-gas, N/m ; Liquid
  • Pressure, kPa; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Gas
  • Pendant drop shape
  • 9
  • POMD
  • 2
  • 3
  • Mass density, kg/m3 ; Liquid
  • Pressure, kPa; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Gas
  • Vibrating tube method
  • 9
  • POMD
  • 2
  • 3
  • Mass density, kg/m3 ; Gas
  • Pressure, kPa; Gas
  • Temperature, K; Gas
  • Gas
  • Liquid
  • Vibrating tube method
  • 9