Question

Why is cryolite used in the decom?position of molten alumina electrolytically?​

Answer 1

Answer:

Besides having a relatively low melting point, cryolite is used as an electrolyte because, among other things, it also dissolves alumina well, conducts electricity, dissociates electrolytically at higher voltage than alumina, and also has a lower density than aluminum at the temperatures required by the electrolysis.

Explanation:

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