Essential Chemistry for IGCSE - Electricity And Chemistry (Section 3 - No. 2)
What is the purpose of adding calcium fluoride (CaF₂) to the electrolyte used in aluminium extraction?
To increase the melting point.
To lower the melting point.
To increase electrical conductivity.
To increase the viscosity of the electrolyte.
Explanation
Calcium fluoride is added to further lower the melting point of the electrolyte.
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