Abstract
Conductivity of molten mixtures KF-NaF-AlF3 is measured in the whole concentration range of the [NaF]/([KF] + [NaF]) ratio at the cryolite ratio CR = 1.3 and 1.5 in the temperature range from 800°C to liquidus temperature. Replacement of K+ cations by Na+ ones results in a considerable conductivity increase. Alumina solubility rises with temperature and cryolite ratio ([KF] + [NaF])/[AlF3] in the KF-NaF-AlF3 system, and decreases with sodium fluoride content. Regression equations obtained allow calculating alumina solubility and electrical conductivity in the KF-NaF-AlF3 system in the CR range from 1.3 to 3.0 depending on the concentration of the components and temperature.
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Original Russian Text © A.P. Apisarov, A.E. Dedyukhin, A.A. Red’kin, O.Yu. Tkacheva, Yu.P. Zaikov, 2010, published in Elektrokhimiya, 2010, Vol. 46, No. 6, pp. 672–678.
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Apisarov, A.P., Dedyukhin, A.E., Red’kin, A.A. et al. Physicochemical properties of KF-NaF-AlF3 molten electrolytes. Russ J Electrochem 46, 633–639 (2010). https://doi.org/10.1134/S1023193510060066
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DOI: https://doi.org/10.1134/S1023193510060066