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  • 314041-04-8
  • Tm(OOCCH3)3•xH2O
  • 99.9%
  • 3-12mm
  • NO
  • 254-326-5



Thulium Acetate Tetrahydrate is a moderately water soluble crystalline Thulium source that decomposes to Thulium oxide on heating. It is generally immediately available in most volumes.

Chemical formula:Tm(OOCCH3)3•xH2O

Molar mass:364.08 g/mol (anhydrous basis)

Appearance:White powder

Solubility:Moderately soluble in water, strong mineral acids.


Thulium Acetate is the important dopant for silica-based fiber amplifiers. It can also be used in portable X-ray devices that has been bombarded in a nuclear reactor as a radiation source. Used as laboratory reagent, optical glasses, structural ceramics, catalysts, electrical components and photo-optical material. The other main application is used for optical fiber.