please help me.. is 'llanuractured by elecuolysis Of
the method adopted for the concentyal•on ofbauxite. the of
alumin.utn
b) is added dunng the electrolysis of almnina"
veame the Cathode used the electrolytlc process.
d' Anode blocks replaced f.equently durmg the process- Why?
b) Al2O3 has a very high melting point, its difficult to melt it. Al2O3 does not dissolve in water, but it dissolves in molten cryolite, an aluminium compound with a lower melting point than aluminium oxide.
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Md Khorshed Alam answered this
c) Graphite cathode
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Md Khorshed Alam answered this
d) During the electrolysis process, aluminium is deposited at the cathode and oxygen is liberated at the anode. Oxygen reacts with the carbon in the graphite to form carbon-dioxide, thus slowly burning away the anodes.
