Potassium Persulfate

Potassium persulfate is the inorganic compound with the formula K2S2O8. Also known as potassium peroxydisulfate, it is a white solid that is sparingly soluble in cold water, but dissolves better in warm water. This salt is a powerful oxidant, commonly used to initiate polymerizations.

Potassium persulfate can be prepared by electrolyzing a cold solution of potassium bisulfate in sulfuric acid or by adding potassium bisulfate to ammonium peroxydisulfate solution.

In industry, this substance is produced through the chemical oxidation of potassium sulfate using fluorine.


The appearancewhite powder
The melting pointless than 100 °C
Molecular mass270.322 g/mol


  • Initiator of polymerization
  • Photography industry
  • Food industry
  • Glass Industry
  • Detergent and cosmetics
  • Water and wastewater treatment
  • Oxidizing agent of persulfate
  • As a polymerization accelerator in synthetic resins
  • Adhesives and coatings


This chemical is available in 25 kg bags.

Chemical Formula

  • K2S2O8

Other names

  • potassium peroxydisulfate
  • Anthion
  • potassium persulfate
  • KPS

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