Sodium Persulfate
Product Overview
Sodium Persulfate is an important oxidant produced by Hongjian Chemical using electrolysis-crystallization process. With its strong oxidizing properties, good water solubility, and storage stability, it plays a key role in polymerization initiation, circuit board etching, wastewater treatment and other fields. The product undergoes strict quality control to ensure oxidizing effectiveness and batch consistency.
❋ Aliases: Sodium Peroxydisulfate, Sodium Peroxysulfate
❋ English Name: Sodium Persulfate
❋ Chemical Formula: Na₂S₂O₈
❋ Molecular Weight: 238.10
❋ CAS Number: 7775-27-1
Key Properties: Strong oxidizing ability, good water solubility, stable at room temperature, violent reaction after activation
Product Technical Specifications
Basic Physicochemical Indicators
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Sodium Persulfate (Na₂S₂O₈) Content: ≥99.0%
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Active Oxygen Content: ≥6.65%
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Moisture: ≤0.05%
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Water Insolubles: ≤0.01%
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Chloride (as Cl): ≤0.005%
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Iron (Fe): ≤0.001%
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pH Value (5% aqueous solution): 5.0-7.0
Stability Indicators
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Thermal Stability: Stable storage at ≤65℃
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Decomposition Temperature: Significant decomposition starts at ≥120℃
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Storage Period: 24 months (under cool dry conditions)
Main Application Fields
1. Polymerization Initiator
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Acrylic Emulsion Polymerization: As low-temperature initiator, dosage 0.1-0.5%, polymerization temperature 40-60℃
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Styrene-Acrylic Emulsion Synthesis: Forms redox system with sodium bisulfite, initiates polymerization at room temperature
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PVC Suspension Polymerization: Replaces part of hydrogen peroxide, improves polymerization rate and molecular weight distribution uniformity
2. Electronics Industry
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PCB Board Etchant: Used for micro-etching of copper foil surface, concentration 50-100g/L, temperature 30-50℃
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Semiconductor Cleaning: Removes organic contaminants from silicon wafer surface, better effect with UV activation
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Electronic Component Pre-plating Treatment: Activates metal surface, improves coating adhesion
3. Environmental Treatment
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Wastewater Advanced Oxidation: Generates sulfate radicals after activation, degrades refractory organic pollutants
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Soil Remediation: In-situ chemical oxidation for organic contaminated soil
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Swimming Pool Disinfection: As alternative to chlorine agents, reduces trihalomethane formation
4. Textile Printing and Dyeing
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Desizing Agent: Removes starch sizing from fabrics, dosage 1-3g/L
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Wool Shrinkproof Treatment: Oxidizes scale layer, improves wool shrink resistance
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Dyeing Wastewater Decolorization: Degrades residual dyes, color removal rate ≥95%
5. Other Industrial Uses
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Metal Surface Treatment: Aluminum electrolytic coloring, stainless steel passivation
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Cosmetics Industry: As mild oxidant for hair dyes
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Food Industry: Flour improver (complies with GB2760 standard)
Product Advantages
Quality Advantages
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Uses platinum electrode electrolysis process, product purity up to 99%+
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Strict particle size control, 80-120 mesh proportion ≥85%, fast dissolution speed
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Extremely low heavy metal content, meets electronic grade application requirements
Performance Advantages
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High oxidation potential up to 2.01V, strong oxidizing ability
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Good water solubility, solubility at 25℃ 55g/100g water
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Stable storage at room temperature, not prone to spontaneous decomposition
Service Advantages
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Can provide different particle size products according to customer needs
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Technical support team provides application solution optimization
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Stable supply chain, annual production capacity 10,000 tons
Safety and Storage & Transportation
Safety Precautions
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Store separately from combustibles and reducing agents
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Avoid mixing with strong acids and bases to prevent violent decomposition
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Wear protective glasses and gloves during operation
Storage Conditions
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Sealed storage in cool, dry, well-ventilated place
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Ambient temperature ≤30℃, relative humidity ≤75%
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Avoid direct sunlight and heat sources
Transportation Requirements
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Transport as oxidizer, dangerous goods code: 51504
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Prevent packaging damage and moisture
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Isolate from flammable materials and reducing agents during transport
