HOW ALUMINIUM IS MADE

Aluminium is the most abundant metal in the Earth's crust. It makes up about 8% by weight of the Earth's solid surface.  The highest concentration of aluminium oxide is found in ore bauxite. Pure aluminum is obtained by extracting alumina from the bauxite. By means of an electrolytic bath, 1 kg of pure aluminium is obtained from 1.9 kg alumina.
 
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