Product Name: Sodium Persulfate
Molecular Formula: Na2S2O8
Molecular Weight: 238.13
CAS NO.: 7775-27-1
Descriptions: Sodium Persulfate is a white, crystalline, odourless salt. It is used as initiator for the polymerisation of monomers and as a strong oxidizing agent in many applications. It has the particular advantage of being almost non-hygroscopic, of having good storage stability as a result of its extremely high purity and of being easy and safe to handle.
Assay,%: 99.0 min.
Active Oxygen,%: 6.65 min.
Chloride and Chlorate (as Cl),%: 0.005 max.
Ammonia (NH4), %: 0.05 max.
Heavy Metal (as Pb), %: 0.001 max.
Iron (Fe), %: 0.001 max.
Manganese (Mn), %: 0.0001 max.
Moisture, %: 0.05 max.
SPS is a suitable initiator for the emulsion or solution polymerisation of acrylic monomers, vinyl acetate, vinyl chloride etc. and for the emulsion copolymerisation of styrene, acrylonitrile, butadiene etc.. SPS is also a kind of oxidizing agent:
(1) Used in cleaning and pickling of metal surfaces.
(2) Used in accelerated curing of low formaldehyde adhesives.
(3) Used in modification of starch, production of binders and coating materials.
(4) Desizing agent and bleach activator.
(5) An essential component of bleaching formulations for hair cosmetics.
Storage and Handling:
SPS is not combustible but assists combustion of combustible materials due to release of oxygen. Provided it is stored under appropriate condition. It must be stored dry in closed containers and protected from direct sunlight, heat and humidity. Impurities such as dirt, rust or traces of metal and reductants may cause catalytic decomposition. The product as supplied or in solution needs to be handled with appropriate care. The eye, skin and clothes must be protected when working with SPS. SPS as damp powder or aqueous solution has a bleaching and slightly corroding effect.
Package: 25kg net in woven bag with 2 PE linings, or 25kg net in paper bag with 1 PE lining.
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