Product Information
Product Name: Potassium Persulphate
Appearance: Crystalline powder
CAS No: 7727-21-1
EINECS No: 231-781-8
Molecular Formula: K₂S₂O₈
HS Code: 28334000
More details: Potassium Persulphate
Introduction: What is Potassium Persulphate?
Potassium Persulphate (also spelled as potassium persulfate or even sometimes mis-typed as potasium persulphate) is a white, crystalline, inorganic compound with the chemical formula K2S2O8. Identified by its CAS number 7727-21-1, this high-purity oxidizing agent plays a fundamental role across industries, from polymerization initiators in plastics, etching agents in electronics, to powerful cleaning and bleaching in the textile and paper sectors (ScienceDirect: Potassium Persulfate).
HEBEI FIZA TECHNOLOGY CO., LTD., with a global footprint and strong R&D, is a reliable supplier delivering consistent, high-quality potassium persulphate for both conventional and advanced manufacturing needs. This page reviews its chemical parameters, latest industrial trends, advanced application scenarios, product data, and answers to technical questions — to support informed sourcing and application decisions.
Industry Trends and Market Outlook
The potassium persulphate market is projected to see moderate but steady growth, thanks to increasing demand in electronics, water treatment, polymer production, and environmental applications. According to MarketsandMarkets, the Asia-Pacific region dominates due to strong manufacturing infrastructure and rapid urbanization. Environmental regulations are also driving the need for high purity persulphates as green oxidants (Ref: Royal Society of Chemistry: Emerging uses of persulfate).
- Polymer industry adopts potassium persulphate as an efficient initiator in emulsion polymerization.
- Semiconductor and electronics etching increasingly rely on high-grade, ultra-low metal persulfates.
- The textile and paper industries require premium, impurity-controlled potassium persulfate for bleaching and fabric treatment.
- Ongoing innovation in soil remediation and water treatment leverages its strong oxidative capability.
Technical Parameters and SDS Information
Parameter |
Value/Specification |
Relevance |
Chemical Name |
Potassium Persulphate / Potassium persulfate |
Nomenclature for identification/labeling |
CAS Number |
7727-21-1 |
Global chemical registry reference |
EINECS No. |
231-781-8 |
European commercial regulatory code |
Formula |
K2S2O8 |
Chemical identity |
Assay |
≥99.0% |
Purity as per PubChem Reference |
Appearance |
White crystalline powder |
Visual check, quality indicator |
Decomposition Temp. |
~100°C (releases O2) |
Process, handling safety |
Moisture |
≤ 0.15% |
Stability, longevity |
pH (1% sol.) |
4.0-6.0 |
Ensures optimal activation |
SDS |
Potassium persulfate SDS |
Safety Data Sheet as per global standards |
Visualizing Potassium Persulphate Data
Applications of Potassium Persulphate Across Key Industries
- Polymer Industry: Used as a radical initiator in emulsion polymerization — e.g., in the synthesis of PVC, polyacrylamide, acrylates, SBR latex.
- Electronics/PCB Manufacturing: High-purity potassium persulphate serves as a copper etchant for precise patterning.
- Textile & Paper Bleaching: Efficient, residue-free bleaching and desizing agent, improving fabric brightness without harsh chlorine.
- Cosmetics and Hair Care: Used as a bleach in professional hair coloring products (strictly regulated, must adhere to ECHA safe limits).
- Soil & Water Remediation: Promotes advanced oxidation processes—removes organic pollutants, oil spills, and persistent contaminants (DOI:10.1016/j.jhazmat.2019.121134).
- Mining Industry: Used in ore flotation and in gold extraction processes as a powerful oxidant.
- Other Uses: Photoengraving, analytical reagent, explosives, rubber hardening, and more, highlighting versatility (PubChem Potassium Persulfate).
Potassium Persulphate SDS & Handling Guidance
For occupational safety, Potassium Persulphate SDS (Safety Data Sheet) compliance is compulsory. Refer to our up-to-date SDS sheet: Download SDS. Key safety aspects:
- Store in a cool, dry, ventilated area away from combustibles.
- Avoid inhalation or skin contact: use gloves, goggles, and local exhaust where dust is present.
- Decomposes at high temperatures, releasing oxygen—a potential fire hazard when mixed with organics.
- Flush spillages with ample water; do not mix with strong acids or reducing agents (see details in SDS (SDS PDF)).
Why Choose HEBEI FIZA TECHNOLOGY CO., LTD.?
- State-of-the-art synthesis and strict QC assure >99% purity with controlled trace metals and excellent particle size distribution.
- Full documentation: COA, latest potassium persulfate SDS, technical/analytical support.
- Custom packaging (1kg, 10kg, 25kg, jumbo bags), labeling, and logistics by sea or air.
- Responsive technical support team: james@fizachem.com | Tel: 0086-311-87718167
- Excellent track record with global customers in polymers, electronics, advanced manufacturing.
FAQ: Expert Answers to 7 Key Technical Questions
1. What is the primary difference between potassium persulphate (K₂S₂O₈) and sodium persulphate (Na₂S₂O₈)?
While both are strong oxidizers and initiators,
potassium persulphate usually offers superior stability in aqueous solution but is less soluble than sodium persulfate. It is preferred in cases where sodium contamination must be avoided, especially for electronics, pharmaceuticals, and potable water applications (
source).
2. What are typical specification grades for industrial potassium persulphate?
The standard grades are:
- PURITY: ≥99.0% (Elite Electronics Grade), 98.5-99.0% (Standard Industrial), <98% (noncritical uses).
- Moisture: ≤0.15% (high stability, long shelf life).
- Impurities (Pb, Fe, heavy metals): ≤5 ppm for semiconductor-grade.
3. Is potassium persulphate compatible with all polymers?
Yes, it is widely used for acrylates, SBR, PVC, polyvinyl acetate, and polyacrylamide. However, reaction conditions like pH (4-6), temperature (60-80°C), and dosage must be optimized. It is not suitable for polymers highly sensitive to acid residues.
4. Does potassium persulphate degrade upon storage?
When kept dry and cool, it has excellent shelf life. Moisture, impurities, and higher storage temps accelerate self-decomposition, gradually lowering assay (see decomposition trend chart above).
5. What are typical packaging forms?
Potassium persulphate from HEBEI FIZA TECHNOLOGY CO., LTD. is available in fiber drums (25kg net), plastic-lined kraft bags (10kg/25kg), or large bulk totes. Customization available for OEM/ODM clients.
6. How does its Safety Data Sheet (SDS) assist in workplace compliance?
The
SDS document details hazards, PPE requirements, accidental release, fire-fighting guidelines, and first aid measures as per REACH, OSHA, and GHS legal frameworks.
7. Are there eco-toxicity or regulatory limits for potassium persulphate?
Regulatory bodies such as ECHA and EPA highlight low direct toxicity but regulate use limits in food and consumer products (
ECHA database). Industrial effluents containing persulfates must be properly treated.
Ordering & Contact
Conclusion: Sourcing with Confidence
The global shift toward environmental responsibility, advanced materials, and regulatory rigor is elevating the requirements for potassium persulphate. HEBEI FIZA TECHNOLOGY CO., LTD. stands at the forefront, delivering consistently high-purity K2S2O8, full documentation (including potassium persulfate SDS), and responsive technical support.
To deepen your knowledge, we recommend exploring the latest on ScienceDirect: Technical Advances in Persulfate Oxidation and participate in the industry forum at Chemical Forums: Persulfate Purity Discussions for forefront insights.
References:
- Royal Society of Chemistry – Emerging Uses of Persulfate for Environmental Applications (Link)
- ScienceDirect – Potassium Persulphate: Industrial Usage (Link)
- PubChem – Potassium Persulphate Chemical Profile (Link)
- ECHA Database & Safety Information (Link)
- MarketsandMarkets – Persulfates Market Insights (Link)
- Chemical Forums – Persulfate Application FAQ (Link)