21 - Pinjarra Gallium Refinery

Pinjarra Gallium Refinery

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What is gallium?

  • Gallium is a soft, silvery-white metal, similar to aluminium

  • It was discovered by Frenchman Paul-Émile Lecoq de Boisbaudran in 1875

  • Gallium readily alloys with most metals, particularly in low-melting alloys as it has a very low melting point itself. It can even be cooled down to the freezing point of water without solidifying and remain unchanged in this liquid state for months

  • It has a high boiling point of 2,204°C, which makes it ideal for recording temperatures that would vaporise a thermometer

  • It's chrystal appearance makes it differ from lead, with a form resembling a square octahedron

  • It is non-toxic

  • It is used to make semiconductors and is found in light emitting diodes, LED's

  • It was considered a replacement for mercury at one point

01 - February 2021

02 - March 2021