Sodium Persulfate
Sodium Persulfate (CAS 7775-27-1, Na2S2O8) is a potent inorganic oxidizing agent widely utilized across numerous industrial applications.
Description
Sodium Persulfate, with the chemical formula Na2S2O8, is an inorganic salt renowned for its strong oxidizing properties. It is a white, crystalline solid that is highly soluble in water, forming a colorless solution. This compound is characterized by the presence of a peroxide linkage (-O-O-) within its anionic structure, S2O8^2-, which is responsible for its powerful oxidative capabilities. Its decomposition in aqueous solutions or upon heating releases active oxygen species, making it a versatile reagent for various chemical processes. The high standard reduction potential of persulfate makes it effective for initiating polymerization reactions, bleaching, etching, and oxidizing a wide range of organic and inorganic substrates. It is stable under normal storage conditions but will decompose when exposed to moisture, heat, or certain catalytic impurities. Due to its strong oxidizing nature, proper handling and storage are crucial to ensure safety and maintain product integrity.
Applications
Sodium Persulfate finds extensive use as a polymerization initiator for emulsifying styrene-butadiene rubber, acrylonitrile-butadiene-styrene, and vinyl acetate emulsions. It is critically employed in the electronics industry as an etching agent for printed circuit boards, offering precise and consistent etching results. In the textile industry, it serves as a bleaching agent and desizing agent to remove starch-based sizing. It functions as a strong oxidant in various chemical synthesis routes and as a cleaning agent for metal surfaces and industrial water treatment. Other applications include soil remediation, where it oxidizes contaminants, and in cosmetics as an ingredient in hair bleaches, owing to its ability to lighten hair pigments.
Storage & Handling
Store in a cool, dry, well-ventilated area, away from incompatible materials, reducing agents, and combustible organic substances. Keep containers tightly closed. Avoid exposure to heat, moisture, and direct sunlight. Protect from physical damage. Use appropriate personal protective equipment during handling.
Danger
- H272 May intensify fire
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