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Potassium Persulfate

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Potassium Persulfate
Chemical Product

Potassium Persulfate

Molecular FormulaK2S2O8 CAS7727-21-1 Molecular Weight270.32 g/mol g/mol
SynonymsDipotassium Peroxodisulfate
Safety & Hazards (GHS) Danger
Oxidizing Oxidizing Irritant Irritant Health hazard Health hazard

⚠️ For information only; not a substitute for the official Safety Data Sheet (SDS).

Potassium Persulfate is a strong oxidizing agent used primarily in industrial applications such as polymerization initiators, cleaning agents, and as a bleaching agent.
- Polymerization: Used as an initiator in the polymerization of styrene and other monomers. - Chemical Manufacturing: Applied in the production of other chemicals, including sulfuric acid. - Cleaning Agents: Used in industrial cleaning and etching applications. - Bleaching Agents: Used in textiles and paper production for bleaching purposes.
AppearanceWhite crystalline powder
OdorOdorless
Molecular FormulaK2S2O8
Molecular Weight270.32 g/mol
Melting Point120 °C
Density2.48 g/cm³
SolubilitySoluble in water
Flash PointNot applicable
Chemical StabilityStable under normal conditions, but decomposes upon contact with moisture
IUPAC Namedipotassium;sulfonatooxy sulfate
Molecular FormulaK2S2O8
Molecular Weight270.32 g/mol g/mol
SMILES[O-]S(=O)(=O)OOS(=O)(=O)[O-].[K+].[K+]
InChIKeyUSHAGKDGDHPEEY-UHFFFAOYSA-L
  • H272 May intensify fire; oxidizer
  • H302 Harmful if swallowed
  • H315 Causes skin irritation
  • H317 May cause an allergic skin reaction
  • H319 Causes serious eye irritation
  • H320 Causes eye irritation
  • H334 May cause allergy or asthma symptoms or breathing difficulties if inhaled
  • H335 May cause respiratory irritation
  • H371 May cause damage to organs

⚠️ For information only; not a substitute for the official SDS.

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