Ørsted produces metallic aluminium

Background. Hans Christian Ørsted was a Danish chemist and physicist who discovered that electric currents create magnetic fields. In 1824, he made a significant contribution to chemistry by being the first person to successfully produce aluminium in its metallic state. His work involved complex chemical reactions, as earlier attempts using electrolysis had failed to isolate the pure element.

Chemical Method. Ørsted's successful isolation involved reacting aluminium chloride with potassium amalgam, an alloy of potassium and mercury. After the reaction, he boiled away the mercury, leaving small chunks of metal that he described as appearing similar to tin. This method produced aluminium in a less-than-pure form, distinguishing it from later, more refined processes.

Presentation and Reception. Ørsted presented his results and a sample of the new metal at meetings of the Danish Academy of Sciences in early 1825. Despite this achievement, he appears to have considered his discovery to be of limited importance. He subsequently gave permission for other chemists, such as Friedrich Wöhler, to take over the research in 1827.