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Ammonium Persulfate (NH4)2S2O8 White Crystalline Powder for Polymerization Initiator and Bleaching Agent
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Ammonium Persulfate (NH4)2S2O8 White Crystalline Powder for Polymerization Initiator and Bleaching Agent
| MOQ: | 10Tons |
| Price: | Please contact customer service |
| Standard Packaging: | Bagged and ton bags |
| Delivery Period: | About six weeks |
| Payment Method: | L/C,D/A,D/P,T/T,Western Union,MoneyGram |
| Supply Capacity: | 100,000 tons per year |
Detail Information
Place of Origin
China
Brand Name
SiChun HongJian
Model Number
Ammonium persulfate
Document
Chemical Formula:
(NH4)2S2O8
CAS Login Number:
7727-54-0
EINECS Login Number:
231-786-5
Density:
1.98 G/cm³
Appearance:
White Crystalline Powder
Security Description:
S22；S24；S26；S37
Hazard Description:
R8；R22；R36/37/38；R42/43
Molecular Weight:
228.201
Highlight:
Polymerization Initiator Ammonium Persulfate
,Bleaching Agent APS
,White Crystalline Powder (NH4)2S2O8
Product Description
Ammonium Persulfate Powder | Polymerization Initiator & Bleaching Agent
High-purity ACS Grade Ammonium Persulfate designed specifically for water treatment applications and various industrial processes. Free samples available for qualified customers.
Product Overview
Ammonium persulfate serves multiple industrial applications including battery manufacturing, polymerization initiation, fiber desizing, and surface treatment for metals and semiconductors. It is also utilized in printed circuit board etching, oil reservoir fracturing, flour and starch processing, oil and fat industries, and photographic applications.
Chemical Specifications
| Property | Value |
|---|---|
| Alias | Ammonium persulfate |
| Chemical Name | Ammonium persulfate |
| Chemical Formula | (NH₄)₂S₂O₈ |
| Molecular Weight | 228.201 |
| CAS Number | 7727-54-0 |
Physical Properties
| Property | Value |
|---|---|
| Melting Point | 120°C (decomposition) |
| Density | 1.98 g/cm³ |
| Refractive Index | 1.50 |
| Appearance | White crystalline powder |
Chemical Properties
Peroxydisulfate contains peroxide groups and functions as a strong oxidizing agent capable of oxidizing Mn²⁺ to MnO₄⁻. Ammonium persulfate is produced through electrolysis of ammonium bisulfate aqueous solutions.
S₂O₈²⁻ + 2H₂O ⇌ 2HSO₄⁻ + H₂O₂
The resulting solution contains ammonium ions, peroxydisulfate ions, hydrogen sulfate ions, and sulfate ions. The hydrolysis process creates an acidic solution, with nitric acid addition inhibiting the forward reaction.
Primary Applications
Polymerization Initiator
This finely milled, free-flowing powder serves as the workhorse for a vast array of free-radical polymerization processes. Upon thermal activation (typically above 60°C), each molecule decomposes to yield two sulfate free radicals that initiate chain growth of polymers. Essential for producing:
- Polyacrylamide for water treatment and biotechnology applications
- Polystyrene for insulation and packaging
- Polyvinyl acetate for adhesives
- Various acrylic resins
The powder form enables precise weighing, easy introduction into reaction vessels, and consistent decomposition profiles for controlled polymerization rates and final polymer properties.
Bleaching Agent
As a key "persalt" or booster, ammonium persulfate powder accelerates bleaching processes by providing additional active oxygen. Applications include:
- Hair lightening and coloring formulations
- Dental bleaching kits
- Textile industry for delicate fabrics
- Pulp processing for brightness enhancement
Valued for its storage stability and powerful yet controllable oxidative action that selectively breaks down color chromophores without excessive material degradation.
We supply this versatile powder to formulators in cosmetic, textile, and chemical industries, providing technical support on optimal incorporation methods and concentration ranges for specific bleaching and initiation needs.
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