Specification
| Product Name | Sodium persulfate |
|---|---|
| Other Names | SPS |
| CAS No. | 7775-27-1 |
| EINECS No. | 231-892-1 |
| MF | Na2O8S2 |
| Molecular weight | 238.1 |
| Purity | 99.2% |
| Appearance | White crystals or powder |
| Density | 2,4 g/cm3 |
| Melting point | without |
| solubleness | 100 °C |
| water solubility | 550 g/L (20 ºC) |
Values are typical for the standard grade. Tighter specifications are available — state the target in your inquiry and we confirm against the production batch.
Hazard classification
- H272 May intensify fire; oxidiser
- H302 Harmful if swallowed
- H315 Causes skin irritation
- H317 May cause an allergic skin reaction
- H319 Causes serious eye irritation
- H334 May cause allergy or asthma symptoms or breathing difficulties if inhaled
- H335 May cause respiratory irritation
- H371 May cause damage to organs
- H316 Causes mild skin irritation
- H320 Causes eye irritation
Precautionary statements (2)
- P210 Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking
- P233 Keep container tightly closed
Substance identity verified against the registry entry on 2026-09-02.
Packaging and shipping
Sodium per sulfate is a powerful and stable inorganic peroxide with the chemical formula Na₂S₂O₈. It is renowned for its extremely strong oxidation potential, excellent water solubility, the ability to generate sulfate radicals (SO₄⁻·) through thermal decomposition, and relatively good storage stability. These characteristics make it an indispensable and highly efficient chemical tool in modern industries such as polymer reaction initiation, electronic circuit etching, advanced oxidation treatment, and special bleaching and disinfection. We are committed to providing stable and reliable oxidation power and initiation sources for our customers’ critical processes under strict safety and compliance management.




Product Description
Anhui Eapearl Chemical Co., Ltd.As a professional supplier of specialty chemicals and high-performance oxidants, relying on a rigorous quality control system and stable supply channels, we provide customers with high-purity and multi-specification persulfate sodium products and professional application solutions. Persulfate sodium is a powerful and stable inorganic peroxide with the chemical formula Na₂S₂O₈. It is characterized by its extremely strong oxidation potential, excellent water solubility, the ability to generate sulfate radicals (SO₄⁻·) through thermal decomposition, and relatively good storage stability. As a result, it has become an indispensable efficient chemical tool in modern industries such as polymer reaction initiation, electronic circuit etching, advanced oxidation treatment, and special bleaching and disinfection. We are committed to providing stable and reliable oxidation power and initiation sources for customers’ critical processes under strict safety and compliance management.
The core value of sodium per sulfate lies in its dual roles as a “free radical generator” and a “strong oxidant”. It can be activated under mild conditions, thereby initiating chain reactions or achieving deep oxidation:
High oxidation potential: The standard redox potential is as high as 2.01V, making it more powerful than common oxidants such as hydrogen peroxide and potassium permanganate.
Free radical initiation mechanism: Through activation by heat, light, transition metal ions, etc., it generates highly reactive sulfate radical (SO₄⁻·), suitable for polymerization and advanced oxidation processes requiring free radical reactions.
Good water solubility and storage stability: Compared to other peroxides, it has better storage stability in a dry state, facilitating transportation and operation, and has good water solubility, making it easy to prepare working solutions. Reaction selectivity: In certain systems, the free radical reaction pathways exhibit unique chemical selectivity.


Delivery&Payment method

Frequently asked
In what packaging is Sodium persulfate shipped?
Standard formats are Dag (25kg), IBC Dag (25kg), ISO tank (20ft) (24–26 m³), ISO tank (40ft) (48–50 m³). Other packaging can be arranged for full-container orders.
Is a safety data sheet available for Sodium persulfate?
Yes. A full safety data sheet for CAS 7775-27-1 is published and linked from this page; a signed copy is issued with the shipping documents.
What purity do you supply?
The standard grade is 99.2%. Tighter specifications are confirmed against the production batch before shipment.





