MetallurgyMediumBloom L3
Question
In the commercial electrochemical process for aluminium extraction the electrolyte used is
Options
A.Al(OH)3 in NaOH solution
B.an aqueous solution of Al2(SO4)3
C.a molten mixture of Al2O3 ,Na3AlF6 & CaF2
D.a molten mixture of Al2O3 and Al(OH)3
Solution
Sol. Mixture of $(\overset{20\%}{Al_{2}O_{3}} + \overset{60\%}{Na_{3}AlF_{6}} + \overset{20\%}{CaF_{2}})$
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