what is the purpose of mixing cryolite and fluorspar with alumina in the electrolytic reduction of alumina?
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4
Answer:
Addition of cryolite and fluorspar increases the electrical conductivity of alumina and lowers the fusion temperature to around 1140 K.
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0
Explanation:
Fluorspar (CaF
2
) is added in small quantity in the electrolytic reduction of alumina dissolved in fused cryolite (Na
3
AlF
6
). Addition of cryolite and fluorspar increases the electrical conductivity of alumina and lowers the fusion temperature to around 1140 K.
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