Potassium persulfate
Molecular formula： K2S2O8
Synonyms：Potassium peroxydisulfate; Potassium peroxodisulfate; dipotassium peroxodisulphate; Potassium persulphate
CAS#：7775-27-1
Summary of performance：Potassium persulfate is a white, crystalline, odorless salt. It is used as initiator for the polymerization of monomers and as a strong oxidizing agent in many applications. It has the particular advantage of being almost non-hygroscopic, of having a particularly good storage stability as a result of its extremely high purity and of being easy and safe to handle.
Application：
(1) Potassium Persulfate is a suitable initiator for emulsion or solution polymerization of acrylic monomers, vinyl acetate, vinyl chloride etc.and for emulsion
copolymerization of styrene, acrylonitrile, butadiene etc.
(2) It is also a kind of oxidizing agent, used in cleaning and pickling of metal surface, accelerated curing of low formaldehyde adhesives and modification of starch, production of
binders and coating materials, also can be used as desizing agent and bleach activator.
(3) It is an essential component of bleaching formulations for hair cosmetics.
Technical data：
| ITEM (%) | High performace | Grade One | Quallified |
|---|---|---|---|
| Assay [K2S2O8] ω/ % ≥ | 99.0 | 98.5 | 98.5 |
| PH(50g/L solution) ω/ % | 3.5~5.5 | 3.5~5.5 | 3.5~5.5 |
| Iron(Fe) ω/ % ≤ | 0.001 | 0.002 | 0.003 |
| Chloride(Cl) ω/ % ≤ | 0.005 | 0.010 | 0.010 |
| Moisture ω/ % ≤ | 0.10 | 0.10 | 0.15 |
| Manganese(Mn) ω/ % ≤ | 0.0001 | 0.0002 | 0.0003 |
| Heavy Metal (Pb) ) ω/ % ≤ | 0.0010 | 0.0015 | 0.0020 |
| Ammonium Salt [NH4] ω/ % ≤ | 0.20 | 0.30 | 0.50 |
Mark：5.1
Transportation： UN NO.1505; Packing type：III
Storage：
(1) Store in a cool, well-ventilated area away from all source of ignition and out of direct sunlight. Store in a dry location away from heat. Store at temperature less
than 30 o C.
(2) Keep away from incompatible materials. Keep containers tightly closed. Do not store in unlabeled or mislabeled containers.
(3) Protect from moisture. Do not store near combustible materials. Keep containers well sealed, seal only with original vent cap. Ensure pressure relier
and adequate ventilation.
Packing：net weight 25kg woven bag.