Sodium Persulphate
Sodium persulfate is the sodium salt of peroxydisulfuric acid, H2S2O8, an oxidizing agent. It is a white solid that dissolves in water. It is almost non-hygroscopic and has good shelf-life. The salt is prepared by the electrolytic oxidation of sodium hydrogen sulfate.
- Synonyms
- Sodium peroxodisulphate, Sodium peroxydisulphate, Disodium peroxodisulphate, disodium {[(oxidooxy)sulfonyl]oxy}sulfonate
- Chemical Formula
- Na2S2O8
- CAS Number
- 7775-27-1
Characteristics
- Molar Weight
- 238.11 g/mol
- Melting Point
- 180°C (decomposes)
- Flash Point
- non flammable
- Density
- 2.59 g/cm³
- Forms
- Powder, White
Uses and Applications
Key applications
- Oxidising agent
- Etching & Engraving
- Bleaching agent