Sodium persulfate is an inorganic compound with the formula Na2S2O8. It 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.
Sodium persulfate is used in a variety of applications, including:
- Bleaching agent for fats, textiles, and hair
- Battery depolarizer
- In emulsion polymerization
- Replacement for ammonium persulfate in etching mixtures for zinc and printed circuit boards
- Pickling of copper and some other metals
- Manufacture of hydrosulfite
- Production of dithionite
- In the synthesis of organic compounds
- In the treatment of water
Sodium persulfate is a strong oxidizing agent and can be harmful if inhaled, ingested, or absorbed through the skin. It can also cause eye irritation. Therefore, it is important to handle sodium persulfate with care and to follow the safety precautions provided by the manufacturer.
Here are some additional safety information about sodium persulfate:
- It is corrosive to metals and can cause burns.
- It can react with combustible materials and cause fires.
- It can release toxic fumes when heated or decomposed.
- It is harmful to aquatic life.
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