Sodium persulfate
Molecular formula：Na2S2O8
Synonyms： disodium peroxodisulfate; Peroxydisulfuric acid, disodium salt
CAS#：7721-21-1
Summary of performance：Sodium persulfate is a white tasteless crystal, or powder, broken down by ethanol, stable at room temperature. It is often used as a strong oxidant and also as a monomer polymerization initiator. It absorbs little moisture, is easy to store, easy to use, and safe.
Application：
(1) Environmental remediation agents: contaminated soil remediation, water treatment (wastewater purification); Waste gas treatment, oxidative degradation
of harmful substances (e.g. mercury).
(2) Polymerization: the initiator of latex or acrylic monomer polymerization solution, vinyl acetate, vinyl chloride and other products, but also styrene, acrylonitrile,
butadiene and other colloidal copolymerization initiator.
(3) Metal treatment: cleaning and pickling of metal surfaces (e.g., in semiconductor manufacturing: cleaning and etching of printed circuits). Activation of copper and
aluminum surfaces.
(4) Used to speed up the processing of low concentration formalin adhesive.A modifier used in the production of starch and used as a desorption agent in the
production of adhesives and coatings.
(5) Others: chemical synthesis; Disinfectant; Water treatment, purification and disinfection; Waste gas treatment; Oxidative degradation of hazardous
substances (e.g. mercury); Paper (low temperature bleaching especially in pulping); Water-reducing agent for mixing suspected soil; In petroleum exploitation, used for fracturing fluid of oil well broken glue agent.
Technical data：
| ITEM (%) | High performace | Grade One | Quallified |
|---|---|---|---|
| Assay [Na2S2O8] ω/ % ≥ | 99.0 | 98.5 | 98.0 |
| PH(50g/L solution) ω/ % | 4.0~6.0 | 4.0~6.0 | 4.0~6.0 |
| Iron(Fe) ω/ % ≤ | 0.001 | 0.002 | 0.003 |
| Chloride(Cl) ω/ % ≤ | 0.02 | 0.02 | 0.03 |
| Moisture ω/ % ≤ | 0.10 | 0.10 | 0.20 |
| 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 | 0.20 | 0.20 |
Mark：5.1
Transportation：UN NO.1505； Packing type：III
Storage：
(1) Sodium persulfate is a non-flammable, but it can release oxygen and play a role of combustion promoter. During storage, it must be stored in a dry, airtight
container to avoid direct sunlight and near heat source.
(2) Do not contact with reduced substances such as organic matter and rust, a small amount of metal, in order to cause Sodium persulfate decomposition, explosion.
(3) Because damp Sodium persulfate and its aqueous solution have bleached and slightly corrosive effects, avoid direct contact with eyes, skin, and clothing during use.
Packing：net weight 25kg woven bag.