FLiNaK, the eutectic mixture of LiF -NaK -KF is a model fluoride salt that was chosen because of the relative ease of handling, well-known characteristics, and previous corrosion studies . Its composition is a mixture of 46.5 mol% LiF, 11.5 mol% NaF, and 42 mol% KF salt. FLi-NaK was prepared in a laboratory by drying, premixing, and melting of component salts in a CVD-SiC coated graphite container. All of these three salts are high-purity chemicals procured from Alfa Aesar. The Ni80/Cr20 foil with a thickness of 0.005mm was procured from Goodfellow Cambridge Limited. The electrodes used in this experiment were a glassy carbon rod (1.02mm diameter), a platinum wire (0.81mm diameter, 99.95%, Surepure Chemetals, L.L.C.), and tungsten rod (1.02mm diameter, 99.95%, Midwest Tungsten Service).