Thermodynamic properties of aqueous potassium fluoride under superambient conditions

Using the ion-interaction or virial coefficient approach developed by Fitte r, the pressure dependences of the osmotic and activity coefficients for KF (aq.) up to 473.15 K and 2.5.0 mol-kg(-1) have been calculated from litera ture data for the apparent molar volumes of KF (aq.). These pressure depend encies were combined with the osmotic and activity coefficient at 0.1 MPa o r p(sat), obtained from the model of Saluja et al. to yield a comprehensive set of thermodynamic properties for KF (aq.) at temperatures from 298.15 t hrough 473.15 K, pressures 10, 20, and 30 MPa, and molalities to 2.5 mol-kg (-1).