Sodium Persulfate
Sodium Persulfate is a white crystalline powder with the chemical formula Na₂S₂O₈. It is a powerful oxidizing agent widely used in industrial and chemical applications. This 25kg packaged product is highly soluble in water and decomposes to release oxygen, making it effective for polymerization, etching, and cleaning processes. Its strong oxidation properties and stability under storage conditions make it a preferred choice for various demanding applications.
Sodium Persulfate
Primary Uses
- Polymer Industry
- Emulsion Polymerization Initiator: Used in the production of synthetic rubbers (e.g., SBR, NBR) and acrylic resins.
- PVC Manufacturing: Initiates suspension polymerization of vinyl chloride.
- Electronics & PCB Manufacturing
- Copper Etching: Removes copper layers in printed circuit board (PCB) production.
- Desmearing: Cleans resin residues from drilled holes in multilayer PCBs.
- Hair Bleaching & Cosmetics
- Hair Lightening: Active ingredient in hair bleach formulations.
- Dye Oxidizer: Used in permanent hair dyes for color development.
- Water Treatment
- Groundwater Remediation: Oxidizes contaminants like chlorinated hydrocarbons.
- Swimming Pool Shock Treatment: Kills bacteria and algae.
- Textile Industry
- Desizing Agent: Removes starch from fabrics before dyeing.
- Wool Shrink-Proofing: Modifies wool fibers to prevent felting.
- Cleaning & Surface Preparation
- Metal Cleaning: Removes oxides and organic contaminants from steel and aluminum.
- Concrete Etching: Prepares surfaces for coatings and repairs.
Secondary Uses
- Photography
- Bleach-Fix Solutions: Used in color film processing.
- Laboratory & Research
- Chemical Synthesis: Oxidizing agent for organic and inorganic reactions.
- Analytical Reagent: Detects trace metals in environmental samples.
- Adhesives & Sealants
- Curing Agent: Accelerates polymerization in certain adhesive systems.
- Oil & Gas
- Well Stimulation: Breaks down polymer-based drilling fluids.
- Pulp & Paper
- Delignification: Assists in bleaching chemical pulps.
- Art Conservation
- Paper Bleaching: Restores aged paper artifacts.
1. Basic Identification Attributes
- Chemical Name (IUPAC): Sodium peroxodisulfate
- Common/Trade Name: Sodium persulfate, APS (Ammonium persulfate analog)
- CAS Number: 7775-27-1
- HS Code: 2833.40.00
- Synonyms: Peroxydisulfuric acid disodium salt
2. Physical & Chemical Properties
- Physical State: White crystalline powder
- Color & Odor: White; odorless
- Solubility: 55 g/100 mL water (20°C)
- Density: 2.4 g/cm³
- Active Oxygen: ~6.5% available
3. Safety & Hazard Attributes
- GHS Classification: Oxidizing Solid (Category 2), Skin Irritant (Category 2)
- Toxicity: LD₅₀ 895 mg/kg (oral, rat)
- Exposure Limits: TWA 5 mg/m³ (respirable dust)
4. Storage & Handling Attributes
- Storage Conditions: Cool, dry, away from organic materials and acids
- Container Type: 25kg PE-lined woven bags
- Shelf Life: 12 months in sealed containers
- Handling Precautions: Avoid dust generation; store separately from combustibles
5. Regulatory & Compliance Attributes
- REACH registered
- Complies with OSHA Hazard Communication Standard
- UN1505 (Oxidizing Substances)
6. Environmental & Health Impact
- Biodegradability: Not biodegradable
- Ecotoxicity: LC₅₀ 75 mg/L (fish)
- Bioaccumulation: None
Safety Handling Precautions
- PPE Required: Nitrile gloves, goggles, dust mask
- Handling Guidelines: Use local exhaust ventilation
- Storage Measures: Keep containers tightly closed
First Aid Measures
- Inhalation: Move to fresh air; seek medical attention
- Skin Contact: Wash with soap/water; remove contaminated clothing
- Eye Contact: Rinse with water for 15 minutes; seek medical help
- Ingestion: Rinse mouth; do NOT induce vomiting
Firefighting Measures
- Fire Hazards: Strong oxidizer; intensifies fires
- Extinguishing Media: Water spray, sand
- Hazardous Combustion Products: Sulfur oxides
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