Abstract
Equations that described the thermodynamic properties of the NaCl+H2O system were obtained from a fit to experimental results for this system. The experimental results included in the fit spanned the range of temperature of approximately 250 to 600 K and, where available, the range of pressure from the vapor pressure of the solution to 100 MPa. New equations and/or values for the following properties are given in the present work: 1) DeltafG<sup>0</sup><sub>m</sub> and DeltafH<sup>0</sup><sub>m</sub>, for formation from the elements, for NaCl(cr) for 298.15 K and 0.1 MPa, 2) DeltafG<sup>0</sup><sub>m</sub> and DeltafH<sup>0</sup><sub>m</sub> from the elements, as well as S<sup>0</sup><sub>m</sub> and C<sup>0</sup><sub>p,m</sub>, all for 298.15 K, 0.1MPa, for NaCl·2H2O(cr), 3) the change in chemical potential for both NaCl and H2O in NaCl(aq) as a function of temperature, pressure, and molality, valid from 250 to 600 K and, where available, from the vapor pressure of the solution to 100 MPa. Comparison of the accuracies of experimental methods, where possible, has also been performed.
Users
Please
log in to take part in the discussion (add own reviews or comments).