Question

Explain the role of Na3AIF in the electrolyic reduction of alumia

Answer 1

Answer:

Na3AlF6 also called as Cryolite is added in the process of electrolytic reduction of pure alumina. ... Addition of Cryolite enhances the conductivity of the mixture since pure alumina is almost a non conductor of electricity. It also enhances the mobility of the mixture by acting as a solvent for the electrolytic mixture.