ABSTRACT

In the following we first outline the pertinent phase relations in the CO2-H2O-NaCl system up to 100°C and 100 MPa. Experimental data on CO2 solubility are then collated from the literature and criteria are established to discriminate reliable from unreliable values. The retained data are next used to fit parameters for Pitzer’s formalism of the solutes. This yields an accurate thermodynamic description of the ternary aqueous solution including its various phase boundaries.