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Potassium persulfate

Molecular Formula: K2S2O8
Molecular weight: 270.32

Physicochemical properties: Potassium persulfate is a white, odorless crystal with a density of 2.477, decomposed at about 100°C, soluble in water, insoluble in ethanol, and has strong oxidizing properties. For the manufacture of explosives, bleaches, oxidants, but also for polymerization initiators. It absorbs almost no moisture and is stable at room temperature for storage. Easy to use and safe.

Storage: Potassium persulfate is non-inflammable, but it can help combustion due to the release of oxygen. When stored, it must be stored in a dry, closed container, away from direct sunlight and near heat sources. Do not come in contact with reducing substances such as organic matter, rust, or trace metals to prevent decomposition or explosion of potassium persulfate. Due to the bleached and slight corrosive effects of wet potassium persulfate powders and aqueous solutions, the eye, skin and clothing are avoided from direct contact during use.


Polymerization: Initiator of latex or acrylic monomer polymerization solution, initiator of ethyl acetate, ethylene chloride, vinyl chloride and other products. It is also an initiator of copolymerization of styrene acrylonitrile, butadiene and other colloids.

Metal treatment: Treatment of metal surfaces (eg in semiconductor manufacturing: cleaning and etching of printed circuits). Activation of copper and aluminum surfaces.

Cosmetics: The main ingredient in bleaching formulas.

Textiles: De-slurry and bleach - especially for low-temperature bleaching.

Others: Chemical synthesis: Water treatment (purification); Disinfectant; Exhaust gas treatment, oxidative degradation of harmful substances (eg mercury).

Technical data:

Item Index
Appearance White crystal
Content ≥99%
Reactive oxygen ≥5.85%
Chloride and chlorate (as Cl) ≤0.02%
Manganese (Mn) ≤0.0003%
Iron (Fe) ≤0.002%
Heavy metal (as Pb) ≤0.002%
Moisture ≤0.15%
Decomposition temperature Above 60°C
Storage temperature Normal temperature
Shelf life 12 months

We also offer specific grades according to customer requirements.


1, net weight 25 kg composite paper bag lined with single-layer plastic bag

2, net weight 25 kg PE bag

3, net weight 25 kg woven bag lined with double-layer plastic bags

4, net weight 1000 kg woven bag lined with single-layer plastic bags (1000 kg in a pallet)

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