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The Wöhler process was the former way in which aluminium was extracted from its ore. However with the advent of more efficient means of electrolysis, this chemical process of extraction became extinct. It involved the reduction of anhydrous aluminium chloride with potassium, and produced powdered aluminium.
In 1827, Friedrich Wöhler refined a process discovered by Hans Christian Oersted, a Danish chemist, who first produced impure aluminium in 1825. This allowed him to establish the specific gravity of aluminium in 1845.
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