Ruthenium

Ruthenium was identified in 1827 by Osann in the leach residue of a platinum ore from the Urals. The element in the metallic state was isolated by Klaus in 1843. The name is derived from Ruthenia, which is the Latin name for Russia.

Ru Ruthenium

Properties

  • A shiny, hard and very brittle grey metal.
  • Difficult to shape.
  • Has a very high melting point.
  • Like the other metals of the platinum group, ruthenium is inert to most other chemicals.

Applications

  • Used in the manufacture of anodes employed in the electrolytic production of chlorine. These are titanium anodes, coated with ruthenium oxide or, occasionally, a platinum–iridium alloy, more recently an iridium–ruthenium alloy.
  • Ru can be used as a catalyst in removing H2S in oil refining and olefin metathesis in organic and pharmaceutical chemistry
  • Ru–Pt and Ru–Pd alloys are used in electrical contacts for thermostats, relays and some hard disk drives.
  • Used in the form of resistors in electronic circuits.
  • Certain ruthenium salts act as a catalyst in the low-temperature synthesis of ammonia.

Recycling

Ruthenium recycling rates are above 50% mainly due to the recovery and re-use of ruthenium used in catalytic applications and to a lesser extent other residues from spent targets, target manufacturing and PVD shield scrap, machining parts and turnings as well as Ru containing chemicals, solutions, and other chemical scrap.

For more info see www.ipa-news.com

 

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