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Potassium peroxydisulfate (K2S2O8)- Crystalline

Potassium peroxydisulfate (K2S2O8)- Crystalline

CAS: 7727-21-1
Molecular Formula: K2S2O8
Purity: 99%-99.99%
Products Code: TR19160800CY
Specification Model: -100 Mesh.etc
Hazardous Class: Class 5.1
EINECS No.: 231-781-8
UN No.: UN1492
Package Class: PGIII
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Potassium peroxydisulfate (K2S2O8)- Crystalline introduce:


Potassium persulfate is the inorganic compound with the formula K2S2O8. Also known as potassium peroxydisulfate or KPS, it is a white solid that is sparingly soluble in cold water, but dissolves better in warm water.

Chemical formula:K2S2O8

Molar mass:270.322 g/mol

Appearance:white powder


Density:2.477 g/cm3

Melting point:< 100 °C (212 °F; 373 K) (decomposes)

Solubility in water:1.75 g/100 mL (0 °C);4.49 g/100 ml (20 °C)

Solubility:insoluble in alcohol

Refractive index (nD):1.467

Crystal structure:triclinic


A polymerization accelerant for PAGE gels. Potassium peroxydisulfate is used as an oxidizing agent in organic synthesis. It is involved in Elbs persulfate oxidation of phenols and the Boyland-Sims oxidation of anilines. Upon solution, it gives radicals and is used to initiate polymerization reactions to prepare styrene-butadiene rubber and polytetrafluoroethylene. It is used as bleaching agent in various hair bleaches, ion exchange agents, plating agents and surface treating agents.
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