Molten salt/liquid metal extraction: Electrochemical determination of activity coefficients in liquid metals

The separation of fission products from a molten salt with a liquid metal has been largely investigated. However, it appears that the metals are not optimized for this purpose. The activity coefficients are needed for the simulations of the efficiency and selectivity of the extraction process which allows identifying the best suited extracting metal. The aim of this work is to find an easy way of determining the activity coefficients in liquid metals by means of electrochemical techniques. This paper describes the methods used as well as the results obtained.