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Osmium Metal (Os) - Pellets

  • 7440-04-02
  • Os
  • 7600PL
  • 99.95%
  • 8-9mm
  • 231-114-0
Availability:

Characteristic


Osmium is a chemical element with the symbol Os and atomic number 76. It is a hard, brittle, bluish-white transition metal in the platinum group that is found as a trace element in alloys, mostly in platinum ores. Osmium is the densest naturally occurring element, with an experimentally measured (using x-ray crystallography) density of 22.59 g/cm3.


Phase at STP: solid

Melting point: 3306 K (3033 °C, 5491 °F)

Boiling point: 5285 K (5012 °C, 9054 °F)

Density (near r.t.): 22.59 g/cm3

when liquid (at m.p.): 20 g/cm3

Heat of fusion: 31 kJ/mol

Heat of vaporization: 378 kJ/mol

Molar heat capacity: 24.7 J/(mol·K)


Application


Manufacturers use its alloys with platinum, iridium, and other platinum-group metals to make fountain pen nib tipping, electrical contacts, and in other applications that require extreme durability and hardness.




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