Atomistry » Platinum » Physical Properties » Diffusion of Gases
Atomistry »
  Platinum »
    Physical Properties »
      Diffusion of Gases »

Diffusion of Gases through Platinum

Hydrogen diffuses through heated platinum, but less rapidly than Graham's experiments would suggest. Methane, despite its low density, does not diffuse through heated platinum, neither do oxygen, nitrogen, argon, and helium. The diffusion of hydrogen through platinum has been studied by many investigators, notably by Winkelmann, who shows that its rate increases after the platinum has been heated for some time, in consequence of the crystalline structure assumed by the metal. The diffusion of hydrogen through platinum at red heat is not directly proportional to the pressure of the gas. Probably this is due to the diffusion being accompanied by dissociation of the hydrogen molecules, the atoms, only, of the hydrogen passing through the metal.

Last articles

Fe in 2YXO
Fe in 2YRS
Fe in 2YXC
Fe in 2YNM
Fe in 2YVJ
Fe in 2YP1
Fe in 2YU2
Fe in 2YU1
Fe in 2YQB
Fe in 2YOO
© Copyright 2008-2020 by atomistry.com
Home   |    Site Map   |    Copyright   |    Contact us   |    Privacy