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Is electrolytic reduction of aqueous alcl3 possible? |
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Answer» e temperature of aluminum chloride is above its melting point, aluminum chloride is a molten salt. Two types of ions are present, Al3+and CL-. Both are in the molten state (which is designated as (l)). The molten salt is similar to a liquid, except the ions are not bound TOGETHER (like H2O in liquid water) and can move indendently of one another. The aluminum ions cannot lose any additional electrons because they already have a noble gas configuration; they can only be reduced. This means that chloride is oxidized (to Cl2). At the high temperatures employed with molten salts, molecular CHLORINE is in the gas state.(a) Reduction takes place at the CATHODE: aluminum metal forms from aluminum ions in the molten salt. |
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