No abstract

The data on internal cation mobilities, it, in the molten binary nitrate systems (Ag, M)N03 and (Ti, M)N03 (M = alkali metal ion) previously obtained by us have been re-examined. In binary alkali nitrates it is known to be well expressed by an empirical equation u = {A/(Vm -17)} exp (-E/RT), where V,,, is the molar volume; while A, V6, and E are constants nearly independent of the cations with which they are mixed. It is found that in melts containing U for the M deviates negatively from this equation, and that with TF, UM deviates positively. Thus, Ag and TV both with relatively high polarizabilities, have opposite effects on UM, that is a tranquilization effect and an agitation effect, respectively. The reason has been interpreted in terms of the high polarizabilities and the difference in the sizes of Ag and TV.

No abstract

Internal mobility ratios in the molten binary systems (Ag,Rb)NO

Ratios of internal cation mobilities in the molten binary systems (Tl, K)NO a and (Tl, Cs)N0 3 have been measured by the Klemm method. From these and the data available on the densities and electric conductivities, the internal mobilities b have been calculated. While generally in the mixtures of T1N0 3 with alkali nitrates at constant temperature the conductivities and internal mobilities decrease with increasing molar volume, in (Tl, K)N0 3 they decrease with decreasing molar volume. This is explained by the high polarizability of the Tl + ions.