Ammonium persulfate

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White crystalline material that is a strong oxidizer. Ammonium persulfate is used as a Bleaching agent, for processing black and white photographs, and for etching printed circuit boards.

Synonyms and Related Terms

ammonium peroxydisulfate; ammonium persulphate (Br.)

Chemical structure

Ammonium persulfate.jpg


  • Noncombustible but may react with organic materials to cause a fire.
  • Strong oxidizer.
  • Inhalation and contact may cause burns and allergic reactions.
  • Hill Brothers: SDS

Physical and Chemical Properties

Soluble in water.

Composition (NH4)2S2O8
CAS 7727-54-0
Density 1.98 g/ml
Molecular Weight mol. wt. = 228.20

Resources and Citations

  • Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
  • Michael McCann, Artist Beware, Watson-Guptill Publications, New York City, 1979
  • Website: