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

Interfacial Tension Measurements of the (H2O + CO2) System at Elevated Pressures and Temperatures

Georgiadis, A.[Apostolos], Maitland, G.[Geoffrey], Trusler, J. P. M.[J. P. Martin], Bismarck, A.[Alexander]
J. Chem. Eng. Data 2010, 55, 10, 4168-4175
ABSTRACT
Interfacial tension measurements are reported for the (H2O + CO2) system at pressures of (1 to 60) MPa and temperatures of (298 to 374) K. The pendant drop method was implemented using a high-pressure apparatus consisting of a view cell, fitted with a high-pressure capillary tube for creating pendant H2O drops in the CO2 bulk phase. The reported results have a relative standard deviation in most cases of less than 1.0 % and are in good agreement with literature values at low pressures. However, at higher pressures (up to 45 MPa), there is a significant scatter in the published data; the reasons for this are discussed. Measurements in the present work extend the pressure range of available data up to pressures of 60 MPa.
Compounds
# Formula Name
1 CO2 carbon dioxide
2 H2O water
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
  • 2
  • Interfacial tension, N/m ; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Pendant drop shape
  • 5
  • POMD
  • 1
  • 2
  • Surface tension liquid-gas, N/m ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Gas
  • Pendant drop shape
  • 75