what is Hall's process (chemistry class 10)
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The process by which aluminum is produced consisting of electrolysis of a molten solution of purified alumina in cryolite at a temperature of about 950° C
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Hall-Heroult process, purified Al2O3 is mixed with Na2AlF6 or CaF2 which lowers the melting point of matrix and brings conductivity. The fused matrix is electrolysed. The cathode and anode is made of steel and graphite respectively.
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