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Aluminum

April 10, 2026

New research has found aluminium can be made to behave in the same way that makes transition metals such as palladium, rhodium, and platinum.

About Aluminum:

  • It is a chemical element with symbol Al and atomic number 13. 
  • It is classified as a post-transition metal
  • Aluminium Ore derived from bauxite, is one of the most abundant, versatile, and strategically important metals in the world.
  • The transformation of bauxite into aluminium is a two-stage industrial process:
    • Bayer Process: The raw bauxite is first crushed and treated with sodium hydroxide to separate aluminum hydroxide. This is then calcined (heated strongly) to produce alumina (Al₂O₃).
    • Hall- Héroult Process: The alumina is smelted using electrolytic reduction, requiring enormous amounts of electricity, which makes aluminium one of the most energy-intensive metals to produce.
  • Properties of Aluminium:
    • It is a hard, strong, silvery-white metal with low density.
    • It has high thermal conductivity, excellent corrosion resistance.
    • It has high malleability and ductile property.
    • Lightweight & corrosion-resistant: Ideal for transportation and construction.
    • Recyclable: Retains its original properties and requires only 5% of the energy compared to primary production.
  • Applications of Aluminium
    • Transport: Aircraft, automobiles, ships, and rail coaches.
    • Household & Packaging: Utensils, appliances, and aluminium foils.
    • Infrastructure: Doors, windows, screens, and cladding.
    • Electrical: Good conductor, used in transmission lines.
    • Strategic Applications: Defence, nuclear industries, and aerospace.

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