Potassium persulfate
General Product Information
| Article | Potassium persulfate |
| Synonyms | Potassium peroxydisulfate, Anthion, Potassium perdisulfate |
| CAS No. | 7727-21-1 |
| EEG No. | – |
| EINECS No. | 231-781-8 |
| IMO | Class 5.1 |
| Tariff Code | 28334000 |
| UN No. | 1492 |
| VLG/ADR | Class 5.1, Packing Group III |
Description
Potassium persulfate is an inorganic salt known to be a powerful oxidizing agent. It is an odorless white, crystalline powder and is highly soluble in water. Potassium persulfate is used in industrial processes because of its strong oxidative properties, which make it suitable for a variety of chemical Applications.
Characteristics
- Odor: Odorless.
- Hygroscopic: –
- Color: White to light gray.
- Grade: Technical.
- Solubility: Soluble in water.
- Shape: Crystalline powder.
Physical & Chemical Properties
| Chemical Structure | K2S2O8 |
| Molar Weight | 174.26 g/mol |
| Melting Point | Approx. 200°C (decomposition). |
| Boiling Point | – |
| Density | 2.477 g/cm³ |
| Refractive Index | – |
| pH | – |
Interessing Links
- CAS Common Chemistry – Potassium Persulfate
- European Chemicals Agency (ECHA) – For chemical information and regulations.
- PubChem – Potassium Persulfate – Chemical information by the National Library of Medicine of the National Center for Biotechnology Information (NIH-NCBI).
- Wikipedia – Potassium persulfate
Applications
Potassium persulfate is applied in various ways, for instance:
1. Cleaning Agents
Applied in Water Treatment and cleaners to oxidize and remove organic contaminants.
2. Bleach
Used as a bleaching agent in the Textile Industry and for hair bleaches thanks to its strong oxidizing power.
3. Polymerization
Potassium persulfate acts as an initiator in radical polymerization processes, for example, at the production of acrylates, styrene and other polymers.
4. Electronics
Used in printed circuit board manufacturing as an etching and cleaning agent.
5. Laboratories
Used as an oxidizer in various analytical and synthesis processes.
6. Pigment Production
Potassium persulfate plays a role at the production of certain dyes and pigments.