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

• Sodium Persulfate (Na₂S₂O₈) Content: ≥99.0%

• Active Oxygen Content: ≥6.65%

• Moisture: ≤0.05%

• Water Insolubles: ≤0.01%

• Chloride (as Cl): ≤0.005%

• Iron (Fe): ≤0.001%

• pH Value (5% aqueous solution): 5.0-7.0

Stability Indicators

• Thermal Stability: Stable storage at ≤65℃

• Decomposition Temperature: Significant decomposition starts at ≥120℃

• Storage Period: 24 months (under cool dry conditions)

Main Application Fields

1. Polymerization Initiator

• Acrylic Emulsion Polymerization: As low-temperature initiator, dosage 0.1-0.5%, polymerization temperature 40-60℃

• Styrene-Acrylic Emulsion Synthesis: Forms redox system with sodium bisulfite, initiates polymerization at room temperature

• PVC Suspension Polymerization: Replaces part of hydrogen peroxide, improves polymerization rate and molecular weight distribution uniformity

2. Electronics Industry

• PCB Board Etchant: Used for micro-etching of copper foil surface, concentration 50-100g/L, temperature 30-50℃

• Semiconductor Cleaning: Removes organic contaminants from silicon wafer surface, better effect with UV activation

• Electronic Component Pre-plating Treatment: Activates metal surface, improves coating adhesion

3. Environmental Treatment

• Wastewater Advanced Oxidation: Generates sulfate radicals after activation, degrades refractory organic pollutants

• Soil Remediation: In-situ chemical oxidation for organic contaminated soil

• Swimming Pool Disinfection: As alternative to chlorine agents, reduces trihalomethane formation

4. Textile Printing and Dyeing

• Desizing Agent: Removes starch sizing from fabrics, dosage 1-3g/L

• Wool Shrinkproof Treatment: Oxidizes scale layer, improves wool shrink resistance

• Dyeing Wastewater Decolorization: Degrades residual dyes, color removal rate ≥95%

5. Other Industrial Uses

• Metal Surface Treatment: Aluminum electrolytic coloring, stainless steel passivation

• Cosmetics Industry: As mild oxidant for hair dyes

• Food Industry: Flour improver (complies with GB2760 standard)

Product Advantages

Quality Advantages

• Uses platinum electrode electrolysis process, product purity up to 99%+

• Strict particle size control, 80-120 mesh proportion ≥85%, fast dissolution speed

• Extremely low heavy metal content, meets electronic grade application requirements

Performance Advantages

• High oxidation potential up to 2.01V, strong oxidizing ability

• Good water solubility, solubility at 25℃ 55g/100g water

• Stable storage at room temperature, not prone to spontaneous decomposition

Service Advantages

• Can provide different particle size products according to customer needs

• Technical support team provides application solution optimization

• Stable supply chain, annual production capacity 10,000 tons

Safety and Storage & Transportation

Safety Precautions

• Store separately from combustibles and reducing agents

• Avoid mixing with strong acids and bases to prevent violent decomposition

• Wear protective glasses and gloves during operation

Storage Conditions

• Sealed storage in cool, dry, well-ventilated place

• Ambient temperature ≤30℃, relative humidity ≤75%

• Avoid direct sunlight and heat sources

Transportation Requirements

• Transport as oxidizer, dangerous goods code: 51504

• Prevent packaging damage and moisture

• Isolate from flammable materials and reducing agents during transport