Electrolysis of Key Compounds
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Remember there are different products for the electrolysis of sodium chloride depending on whether it is in aqueous or molten state, the different products have many uses such as PVC (polyvinylchloride) or hydrogen fuel cells.
The electrolysis of molten lead (II) bromide produces a metal and a halide gas.
Aluminium is extracted from aluminium oxide powder originating from bauxite. In this electrolysis the aluminium oxide is dissolved in aluminium cryolite and graphite electrodes are used, note the different arrangement of electrodes shown in the diagram.
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