A corresponding states approach for the prediction of surface tension of molten alkali halides

The extended corresponding states principle has been applied on the predict ion of the surface tension of pure molten alkali halides. The model uses li quid density and vapour pressure data of the salts of interest and of the r eference salt, chosen to be NaCl, as the input for the calculation of tempe rature-dependent equivalent substance reducing ratios (ESRR). The model her e described was already applied on the prediction of the viscosity and ther mal conductivity of pure molten alkali halides [High Temp.-High Pressures, 2000]. Calculations were also made using the simple two-parameter correspon ding states principle, with the melting, temperature and corresponding dens ity as scaling factors. Agreement between calculated and experimental data is within 10-15% for most of the salts studied. (C) 2001 Elsevier Science B .V. All rights reserved.