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

Density of Water + Carbon Dioxide at Elevated Pressures: Measurements and Correlation

Hebach, A.[Andreas], Oberhof, A.[Alexander], Dahmen, N.[Nicolaus]
J. Chem. Eng. Data 2004, 49, 4, 950-953
ABSTRACT
Density data of the water + carbon dioxide system were determined using a calibrated vibrating-tube mass flow meter with a uncertainty below 0.15 %. Measurements were performed in the pressure and temperature regimes of (1 to 30) MPa, and (284 to 332) K, respectively. The water-rich phase density showed a pronounced dependence on pressure and temperature whereas the CO2-rich phase did not change from the pure density within the measuring uncertainty. A regression function was developed which describes the experimental data in the range studied.
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
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Fluid (supercritical or subcritical phases)
  • Vibrating tube method
  • 205