The diffusion of Zn2+ in equimolecular NaCl-KCl melts was investigated by using chronopotentiometric methods (table 87). The data for KCl-NaCl-ZnCl2 compositions, at temperatures ranging from 700 to 800C, could be described by:

D (cm2/s) = 1.42 x 10-3 exp[-6.49(kcal/mol)/RT]

The data for KCl-NaCl-ZnF2 compositions, at temperatures ranging from 700 to 800C, could be described by:

D (cm2/s) = 2.12 x 10-3 exp[-8.37(kcal/mol)/RT]

The data for KCl-NaCl-xZnF2-4xNaF compositions, at temperatures ranging from 700 to 800C, could be described by:

D (cm2/s) = 1.7 x 10-3 exp[-7.91(kcal/mol)/RT]

Diffusion Coefficient of Zn(II) in Chloride and Chloride-Fluoride Melts. I.F.Nichkov, E.A.Novikov, S.P.Raspopin, A.N.Korzh, Y.M.Ivanov: Elektrokhimiya, 1968, 4[5], 584-6

Table 87

Diffusion of Zn2+ in Equimolecular NaCl-KCl Melts

(The Zn concentrations ranged from 0.15 to 2%)