for extracting aluminium cryolite and fluorspar are mixed-- why?
Answers
Answer:
Cryolite and fluorspar are used in electrolytic reduction of Alumina as they increase the conductivity of the mixture and they also increase the mobility of the fused mixture.
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It will reduce the rate of oxidation of carbon at the anode.
Explanation:
The cryolite in its molten state used as a solvent helps to reduce the energy while extracting aluminium. The function of fluorspar is that it is mixed with cryolite acts as a catalyst and lowers the temperature of the molten mixture and makes it conduct. They both thus decrease the rate of oxidation of carbon at the anode. Thus both cryolite and fluorspar are mixed with each other that are used in the extracting aluminium.
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