The isolation of this element was cheapened significantly by Henri Deville, who used sodium instead of the potassium that had been used by Friedrich Wöhler [VOH-lur].
The isolation of this element was cheapened significantly by Henri Deville, who used sodium instead of the potassium that had been used by Friedrich Wöhler [VOH-lur]. In addition to stainless steel and alloys of copper, alloys of this element are susceptible to stress corrosion cracking but not hydrogen embrittlement. An oxide of this element is used in the Verneuil [vair-nool] process to create several gemstones, turning corundum into ruby or sapphire. It is commonly separated using electrolysis from the sodium and fluorine in cryolite with the Hall–Héroult  [air-ohl] process, and the Bayer process is used to get an oxide of this metal from bauxite. Name this silvery white metal often used in soft drink cans.
The isolation of this element was cheapened significantly by Henri Deville, who used sodium instead of the potassium that had been used by Friedrich Wöhler [VOH-lur].
aluminum