Chemical elements
  Erbium
    Isotopes
    Energy
    Production
    Application
    Chemical properties
      Erbia
      Erbium sulphate
      Erbium acid selenite
      Erbium nitrate
      Erbium platinocyanide
      Erbium oxalate
      Erbium sesquioxide
    PDB 3cm6-3dh4

Erbium sesquioxide, Er2O3






Erbium sesquioxide, or erbia, Er2O3, is a rose-coloured powder of density 8.64 and specific heat (between 0° and 100°) 0.065. It does not combine directly with water. A hydrated peroxide also exists.
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