CONDUCTIVITY AND VISCOSITY OF MOLTEN MIXTURES OF FERRIC NITRATE NONAHYDRATE WITH HYDRATES OF CALCIUM, CADMIUM, MAGNESIUM, AND ZINC NITRATES

The conductivity and viscosity of molten mixtures of ferric nitrate nonahydrate with hydrates of calcium, cadmium, magnesium, and zinc nitrates have been measured as a function of temperature and composition. Both conductivity and fluidity exhibit a non-Arrhenius temperature dependence for all the compositions and have been described in terms of three-parameter equations ? = A?exp[-B?/(T-T0,?)] and Ø-Aø x exp[-Bø/(T-T0,ø)]. A?, B?T0,?AøBøand T0,øare empirical parameters characteristic of the medium. The deviations from Ideal behavior In transport properties have been interpreted considering ion-ion, lon-water, and water-water interactions. The results suggest the existence of a hydration-dehydration phenomenon in these mixed hydrated melts. © 1990, American Chemical Society. All rights reserved.