Sodium Persulphate

Industrial Grade Oxidising Agent — Bulk supply across India & International Markets

What is Sodium Persulphate?

Sodium Persulphate (Na2S2O8) is a strong oxidising agent supplied as a white crystalline solid, valued for its ability to release active oxygen and initiate or accelerate a wide range of oxidation reactions. It offers a more stable, easier-to-handle alternative to some other persulphate salts and hydrogen peroxide in certain applications, while still providing powerful oxidising capability across electronics manufacturing, polymer chemistry, textile processing, and environmental remediation applications.

Polychem Industries supplies Sodium Persulphate to printed circuit board manufacturers, polymer producers, textile processing companies, and environmental remediation contractors across India and internationally. Its versatility as a controllable, relatively stable source of strong oxidising power makes it an important specialty industrial chemical across electronics, polymer, and environmental sectors.

Oxidiser Safety Notice

Sodium Persulphate is a strong oxidising agent and should be stored away from combustible materials, reducing agents, and organic materials. It can decompose with the release of oxygen and heat, particularly at elevated temperatures. Store in a cool, dry, well-ventilated area in sealed containers, away from sources of ignition and incompatible materials.

Available Grades

GradeFormPurityStandardApplications
Industrial GradeWhite crystalline powder/granules98%+ (Industrial Grade)IndustrialPCB etching, polymerisation initiator, textile bleaching, soil remediation

Applications & Uses

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PCB Etching & Electronics Manufacturing

One of the most significant applications. Sodium Persulphate is widely used as a copper etchant in printed circuit board (PCB) manufacturing, selectively dissolving exposed copper to create the circuit pattern required for electronic device production.

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Polymerisation Initiator

Used as a free-radical initiator in the polymerisation of various monomers including acrylates, styrene, and other vinyl monomers in emulsion and suspension polymerisation processes used to manufacture numerous polymer and latex products.

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Textile Bleaching & Desizing

Used in textile processing as a bleaching and desizing agent, helping remove sizing agents and natural pigments from fabrics as part of the textile preparation and finishing process.

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Soil & Groundwater Remediation

Used in environmental remediation applications, particularly in activated persulphate treatment systems, to oxidise and break down various organic contaminants in contaminated soil and groundwater treatment projects.

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Hair Bleaching & Cosmetic Applications

Used as a component in certain hair bleaching and lightening product formulations, where its oxidising action helps achieve the desired colour-lightening effect on hair.

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Oil Field Applications

Used in certain oilfield chemical applications, including as a breaker for polymer-based fracturing fluids, helping reduce fluid viscosity after its primary function has been completed in well stimulation operations.

Technical Specifications

Sodium Persulphate — Key Properties

Chemical FormulaNa2S2O8
CAS Number7775-27-1
Molecular Weight238.10 g/mol
AppearanceWhite crystalline powder/granules
Purity98%+ (Industrial Grade)
Decomposition Temperature>100°C (decomposes, releasing oxygen)
Density / Bulk DensityBulk density: 1.0–1.3 g/cm3
pH3.5 – 5.0 (1% solution, mildly acidic)
Packaging Available25 kg bags
StorageStore in cool, dry place away from combustible materials and reducing agents. Strong oxidiser — keep away from heat and organic materials.

Why Source Sodium Persulphate from Polychem Industries?

  • Industrial grade with full quality documentation
  • Certificate of Analysis and MSDS provided on request
  • Strong, controllable oxidising power for etching and polymerisation
  • Reliable bulk supply for electronics and polymer manufacturers
  • Competitive pricing with year-round availability
  • Export documentation experience for international shipments

Frequently Asked Questions

Why is Sodium Persulphate used for PCB etching?
Sodium Persulphate effectively oxidises and dissolves exposed copper on a circuit board substrate while leaving the protected, masked areas of copper (representing the desired circuit pattern) intact. This selective etching capability, combined with relatively controllable reaction kinetics and good process consistency, makes it a widely used etchant in printed circuit board manufacturing.
What is the difference between Sodium Persulphate and Potassium Persulphate?
Both are strong oxidising persulphate salts with similar fundamental chemistry, but they differ in solubility and specific application suitability. Sodium Persulphate generally has higher water solubility, which can be advantageous in certain etching and remediation applications, while Potassium Persulphate may be preferred in specific polymerisation or other applications based on particular reaction requirements and compatibility considerations.
What precautions should be taken when handling Sodium Persulphate?
As a strong oxidising agent, Sodium Persulphate should be stored away from combustible materials, organic matter, and reducing agents to minimise fire and reaction risk. Standard industrial handling precautions including appropriate PPE, good ventilation, and proper storage following oxidiser handling guidelines should be observed. Full MSDS documentation is available on request.
Do you export Sodium Persulphate outside India?
Yes. We export to Bangladesh, Sri Lanka, Nepal, Bhutan, and South Africa with full export documentation. As an oxidising material, all applicable dangerous goods regulations are complied with during transport. Contact us for export pricing and lead times.

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