Abstract
The molar volume of molten salts, Vm at the melting point, Tm, were analyzed using the following parameters; electronic polarizability αt, the ratio of the charge and radius and the theoretical molar volume Vt, obtained by assuming the closed packing of ions. In single and binary molten salts such as alkali halides and alkaline earth halides except beryllium and magnesium salts having complex anions, the reduced molar volumes Y= Vm/∑Vt lie on a single curve against X=In[∑(_??_)3⋅(∑α)4/3] within the error of ±10% (Figs.6 and 7). For the molten salts with complex anions, it is necessary to obtain further information on the effective volume and the electronic polarizability of the complex ions for the estimation of the density.
