The function of fluorspar in the electrolytic | vedclass

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Question

(B) Fluorspar $(CaF_2)$ is added in small quantities during the electrolytic reduction of alumina $(Al_2O_3)$ dissolved in fused cryolite $(Na_3AlF_6)

Vedclass · Accepted Answer

To lower the temperature of the melt and to make the fused mixture very conducting

Vedclass · Answer

(B) Fluorspar $(CaF_2)$ is added in small quantities during the electrolytic reduction of alumina $(Al_2O_3)$ dissolved in fused cryolite $(Na_3AlF_6)$. Its primary functions are to lower the melting point of the mixture and to increase the electrical conductivity of the melt,which facilitates the electrolysis process at a lower temperature of approximately $1140 \, K$.

The function of fluorspar in the electrolytic reduction of alumina dissolved in fused cryolite $(Na_3AlF_6)$ is

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