Volumetric Properties of Mixed Electrolyte Aqueous Solutions at Elevated Temperatures and Pressures. The System KCl-NaCl-H2O to 523.15 K, 40 MPa, and Ionic Strength from (0.1 to 5.8) mol·kg-1 Zezin, D.; Driesner, T.; Sanchez-Valle, C.; Journal of Chemical & Engineering Data 2014, 59, 736-749