Chemical elements
  Thulium
    Isotopes
    Energy
    Production
    Application
    Chemical properties
      Thulium chloride
      Thulium bromate
      Thulium sesquioxide
      Thulia
      Thulium sulphate
      Thulium nitrate
      Thulium oxalate
      Thulium acetylacetonate

Chemical properties of Thulium






Pure thulia was isolated by James in 1911. A few compounds of thulium have been described. They are pale green in the solid state and in solution. As the amount of erbium salt present as impurity increases from a trace upwards, the colour of the aqueous solution becomes successively yellowish-green, yellow, colourless, and pink.
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