Chemical elements
  Oxygen
    Phlogiston
    Isotopes
    Energy
    Production
    Application
    Physical Properties
      Liquid Oxygen
      Solid Oxygen
      Solubility
    Chemical Properties
    Ozone
    Atmosphere
    Water
    Hydrogen peroxide

Solid Oxygen






By rapid evaporation and consequent cooling, or by cooling in liquid hydrogen, liquid oxygen can be converted into a bluish-white solid oxygen of density 1.4256 at -252.5° C. and melting at -219° C. under a vapour pressure of 0.9 mm. The solid exhibits allotropy, α, β, and γ forms being recognised. The transition between the α and β forms occurs at -249.5° C. and between the and y forms at -230.5° C.


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