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Wöhler process
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<p>The Wöhler process was one of the first routes for producing <a href="/facts/Aluminium/7wmR8jYE">aluminium</a> metal. It involves the reduction of <a href="/facts/Anhydrous/A7B0fDLE">anhydrous</a> <a href="/facts/Aluminium_chloride/xrhvSxDr">aluminium chloride</a> with <a href="/facts/Potassium/FWPwS7Rj">potassium</a>, produced powdered aluminium: </p> AlCl3 + 3 K → Al + 3 KCl <p>With advent of more efficient means of electrolysis, e.g., <a href="/facts/Hall%25E2%2580%2593H%25C3%25A9roult_process/CgW4b08l">Hall–Héroult process</a>, the Wöhler process and related chemical-based routes became obsolete. </p>