Potassium Persulfate
Potassium Persulfate CAS 7727-21-1 Overview
CAS Number : 7727-21-1
EINECS No : 231-781-8
Purity : 99%
Molecular Formula： K2S2O8
Molecular Weight： 270.33
Structural Formula：
Synonyms: Potassium disulfate peroxide; Potassium persulfate; Potassium persulfate
Potassium Persulfate Manufacturer & Supplier in China
Potassium persulfate is a strong oxidizing agent with the chemical formula K2S2O8 and CAS number 7727-21-1. It is commonly used as a polymerization initiator, oxidizing agent, bleaching agent and industrial chemical in applications such as emulsion polymerization, metal surface treatment, printed circuit cleaning, bleaching and related oxidation processes.
DEGUSA CHEMICAL supplies potassium persulfate for industrial buyers who need stable quality, product specifications, packaging information, COA, SDS, TDS and export support.
Potassium Persulfate CAS 7727-21-1 Overview
Potassium persulfate, also known as potassium peroxydisulfate or dipotassium peroxydisulfate, is an inorganic persulfate compound supplied as a white crystalline powder. It belongs to oxidizing substances and should be stored, handled and transported according to relevant safety requirements.
For international buyers, CAS No. 7727-21-1 is important for confirming the correct product, checking specifications, requesting technical documents and preparing import or transportation information.
Key Product Information
| Item | Details |
|---|
| Product Name | Potassium Persulfate |
| CAS No. | 7727-21-1 |
| EINECS No. | 231-781-8 |
| Molecular Formula | K2S2O8 |
| Molecular Weight | 270.33 |
| Appearance | White crystalline powder |
| Purity | 99% |
| UN No. | 1492 |
| IMDG Class | 5.1 |
| Packing Group | III |
| Main Uses | Polymerization, oxidation, bleaching, metal surface treatment |
Industrial buyers usually check purity, active oxygen, moisture, heavy metals, packaging, documents and transportation classification before placing a bulk order.
Typical Applications of Potassium Persulfate
Polymerization Initiator
Potassium persulfate is used as an initiator for emulsion or solution polymerization of acrylic monomers, vinyl acetate, vinyl chloride and related materials. It can also be used in emulsion co-polymerization systems involving styrene, acrylonitrile and butadiene.
For polymerization applications, buyers usually pay attention to product purity, batch consistency, active oxygen, moisture level and technical documents such as COA, SDS and TDS.
Metal Surface Treatment
Potassium persulfate is used in metal surface treatment, including cleaning and etching of printed circuits and activation of copper and aluminium surfaces. In these applications, stable oxidizing performance and proper handling are important.
Buyers should confirm product specification, packaging and storage requirements before use.
Bleaching and Oxidation
Potassium persulfate can be used as a bleaching agent and oxidizing agent in industrial processes. It may support applications such as desizing, active bleaching and oxidation-related processing, depending on the process requirements.
Environmental and Industrial Use
Additional uses may include water treatment, waste gas treatment, oxidative degradation of harmful substances and environmental remediation support, depending on the application requirements.
These technical items are broadly consistent with the technical data published on the ZhanHua potassium persulfate page.
Technical Data
Typical specification values may include:
| Item | Typical Specification |
|---|---|
| Assay K2S2O8 | ≥99.0% |
| Active Oxygen | ≥5.86% |
| Fe | ≤0.001% |
| Mn | ≤0.0001% |
| Moisture | ≤0.10% |
| Heavy Metals as Pb | ≤0.0010% |
| pH 50 g/L | 4.0–6.0 |
| Chloride and Chlorate as Cl | ≤0.01% |
| Ammonium Salt NH4 | ≤0.2% |
Actual specifications should be confirmed according to order requirements, application and the latest product documentation.
Packaging and Storage
Packaging
Standard packaging can be arranged according to shipment requirements. Common packaging may include 25 kg net PE bags, and pallets can be arranged based on customer requirements.
For bulk purchasing, buyers should confirm packaging type, pallet requirements, destination country, shipment method and document requirements before placing an order.
Storage
Potassium persulfate should be stored in a dry, closed container and protected from direct sunlight, heat and humidity. Impurities such as dirt, rust, traces of metals and reducing substances may cause decomposition. Appropriate eye, skin and clothing protection should be used during handling.
Buyers should always refer to the latest SDS before storage, handling or transportation.
Transportation and Hazard Information
| Item | Details |
|---|---|
| HS Code | 28334000 |
| UN No. | 1492 |
| IMDG Code | Class 5.1 |
| Packing Group | III |
Potassium persulfate is classified as an oxidizing substance. It should be packed, handled and transported according to relevant dangerous goods requirements and destination country regulations.
COA, SDS, TDS and Buyer Support
For qualified business inquiries, DEGUSA CHEMICAL can support buyers with:
- COA
- SDS / MSDS
- TDS
- Product specification confirmation
- Packaging details
- Export documentation support
- Shipment coordination support
For industrial buyers, product supply is only part of the order. Technical documents, packaging details and export coordination are also important for practical purchasing and shipment arrangements.
User FAQ
Potassium Persulfate FAQ
For qualified business inquiries, DEGUSA CHEMICAL can support with COA, SDS (MSDS), TDS, packaging details, shipment coordination and export support for potassium persulfate orders.
Get In Touch
Request Potassium Persulfate Quote
If you are looking for potassium persulfate CAS 7727-21-1 for industrial use, DEGUSA CHEMICAL can support your purchasing needs with product specifications, technical documents, packaging information and export coordination.
To request quotation support, please provide quantity, destination port, packaging requirement, application and required documents.
