K2O8S2
270.33 g/mol
Industrial ChemicalDanger
POTASSIUM PERSULFATE
CAS7727-21-1EC231-781-8
Category
Industrial Chemical
Compound Class
Inorganic Salt
Primary Use
oxidizing agent for polymerization initiator
Potassium persulfate is an inorganic salt that appears as a white solid. It is sparingly soluble in cold water but dissolves more readily in warm water, and it functions as a strong oxidizing agent commonly used to initiate polymerizations.
oxidizing agent for polymerization initiation
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
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Related Compounds
StrongSame Parent
Ammonium persulfate
CAS7727-54-0
Bleaching agent and oxidizer
StrongSame Parent
Sodium persulfate
CAS7775-27-1
Bleaching and oxidizing agent
ReferenceSame Category
Liquid nitrogen
CAS7727-37-9
Inert purge gas and protective gas
ReferenceSame Category
Barium sulfate
CAS7727-43-7
X-ray contrast agent and industrial filler
ReferenceSame Category
Pentafluorobenzonitrile
CAS773-82-0
Chemical intermediate for synthesis
ReferenceSame Category
4-METHYLCYCLOHEXANOL
CAS7731-28-4
Solvent and lubricant antioxidant
Safety Reference
Danger
H272May intensify fire; oxidizer
H302Harmful if swallowed
H315Causes skin irritation
H317May cause an allergic skin reaction
H319Causes serious eye irritation
H334May cause allergy or asthma symptoms or breathing difficulties if inhaled
H335May cause respiratory irritation
H371May cause damage to organs
H320Causes eye irritation
Regulatory Compliance1
- CN Catalogue of Hazardous ChemicalsCNRegulation
Customs Tariff Classification
The international HS code for POTASSIUM PERSULFATE (CAS 7727-21-1) is 2833.40.
HS code (international, 6-digit)
2833.40
EU CN code (8-digit)
2833 40 00
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
Identifiers
IUPAC Name
dipotassium;sulfonatooxy sulfate
InChIKey
USHAGKDGDHPEEY-UHFFFAOYSA-L
SMILES
[O-]S(=O)(=O)OOS(=O)(=O)[O-].[K+].[K+]
Synonyms (25)
- Anthion
- DIPOTASSIUM PEROXYDISULPHATE
- DIPOTASSIUM PERSULPHATE
- Dipotassium peroxodisulphate
- Dipotassium peroxydisulfate
- Dipotassium persulfate
- POTASSIUM PERSULFATE
- Potassium peroxodisulfate
- Potassium peroxydisulfate
- Potassium peroxydisulphate
- potasium persulfate
- potassium monopersulphate
- potassium peroxidisulfate
- potassium persuifate
- potassium persulphate
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