Chemical elements
    Chemical properties
      Thulium chloride
      Thulium bromate
      Thulium sesquioxide
      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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