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Hall-Heroult Cell for the Production of Aluminium

Key Concepts

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Hall-Heroult Cell

Anode:
(positive electrode)
oxidation at anode
C(s) + 2O2-(l) CO2(g) + 4e
Cathode:
(negative electrode)
reduction at cathode
Al3+(l) + 3e Al(l)
 
Overall Reaction: 2Al2O3(l) + 3C(s) 4Al(l) + 3CO2(g)

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Uses for Aluminium

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