Bleaching agent sodium pyrosulfate

High-Quality Sodium Pyrosulfate for Textile Processing, Paper Manufacturing & Industrial Bleaching Applications

Sodium Pyrosulfate (Na2S2O7) represents advanced inorganic bleaching technology specifically formulated for textile processing operations, paper manufacturing systems, water treatment facilities, and industrial bleaching applications requiring consistent purity and multi-industry effectiveness. This essential bleaching compound serves critical functions across textile procedures, paper production processes, water treatment methods, and specialized systems requiring controlled bleaching action, chemical stability, and industrial processing capabilities with exceptional purity.

At Chemicals & Process Equipment Limited, we supply technical-grade Sodium Pyrosulfate manufactured under stringent quality control standards and international specifications. Our comprehensive product range includes reagent grade sodium pyrosulfate, textile grade bleaching agent, paper grade sodium pyrosulfate, and custom formulations meeting diverse requirements for textile processing, paper manufacturing, water treatment, and specialized operations across global textile, paper, water treatment, and industrial bleaching markets.

✅ Advanced Inorganic Bleaching Technology – Optimized Purity Properties & Multi-Industry Performance
✅ Consistent Quality Standards – Multiple Purity Classifications with Comprehensive Documentation
✅ Essential Bleaching Agent – Superior Textile, Paper & Industrial Performance
✅ Multi-Industry Applications – Textile, Paper, Water Treatment & Industrial Bleaching Systems
✅ Technical Support Package – Complete Application Guidance & Performance Optimization

The Global Bleaching Agents Market is expected to grow from USD 4.8 Billion in 2024 to USD 6.7 Billion by 2031, at a CAGR of 4.9% during the forecast period, while the textile bleaching chemicals market achieved a valuation of USD 890 million in 2024 and is forecasted to climb to USD 1.2 billion by 2033, advancing at a CAGR of 3.8% from 2026 to 2033. This growth is driven by increasing textile production, expanding paper manufacturing, growing water treatment requirements, and rising demand for eco-friendly bleaching solutions across global textile and industrial markets.

Technical Specifications & Sodium Pyrosulfate Properties

Property	98.0% Grade	99.0% Grade	99.5% Grade
Na2S2O7 Content (%)	98.0% min	99.0% min	99.5% min
Sodium (Na) Content (%)	20.7-21.3%	20.9-21.1%	21.0-21.2%
Sulfur (S) Content (%)	28.8-29.2%	29.0-29.4%	29.2-29.6%
Water Content (%)	0.5% max	0.3% max	0.2% max
Water Insoluble Matter	0.05% max	0.02% max	0.01% max
Iron (Fe)	50 ppm max	20 ppm max	10 ppm max
Heavy Metals (as Pb)	20 ppm max	10 ppm max	5 ppm max
Chloride (Cl)	100 ppm max	50 ppm max	20 ppm max
Sulfate (SO4)	0.5% max	0.3% max	0.1% max
Acid Insoluble Matter	0.1% max	0.05% max	0.02% max
pH (5% aqueous solution)	1.0-2.0	1.2-1.8	1.3-1.7
Appearance	White crystalline powder
Crystal Form	Anhydrous crystals
Molecular Weight	222.12 g/mol
Density	2.658 g/cm³
Bulk Density	1.4-1.6 g/cm³
Melting Point	401°C
Decomposition Temp	>460°C
Solubility in Water (20°C)	740 g/L
Solubility in Water (100°C)	Decomposes
Solubility in Ethanol	Slightly soluble
Hygroscopicity	Hygroscopic
Stability	Stable in dry conditions
Reactivity	Strong acid, oxidizing agent
Bleaching Action	Permanent oxidative bleaching
pH Effect	Acidic solutions
Storage Temperature	Room temperature
Storage Humidity	<50% RH
Shelf Life	24 months
Storage Conditions	Dry, cool, well-ventilated area
Packaging Options	Bags, drums, bulk containers

Available Grade Types:

• Technical Grade for industrial bleaching applications
• Reagent Grade (ACS) for analytical laboratory use
• Textile Grade for fabric bleaching and processing
• Paper Grade for pulp and paper manufacturing
• Water Treatment Grade for oxidation processes
• Electronic Grade for semiconductor cleaning
• Food Grade for approved food applications
• Pharmaceutical Grade for medical applications

Specialized Packaging Solutions:

• 500g laboratory bottles for analytical use
• 1kg HDPE containers for small-scale operations
• 25kg multiwall paper bags with moisture barriers
• 50kg woven polypropylene bags for bulk applications
• 500kg bulk bags (FIBC) for industrial operations
• 1000kg big bags for large-scale users
• Moisture-proof packaging for humid climates
• UN-approved packaging for hazardous goods transport

Textile Processing Applications

Fabric Bleaching & Whitening Textile manufacturers utilize Sodium Pyrosulfate for cotton bleaching, fabric whitening, and textile processing requiring textile-grade quality. Textile operations employ sodium pyrosulfate for permanent bleaching, color removal, and fabric preparation processes.

Fiber Treatment & Processing Textile processors use Sodium Pyrosulfate for fiber treatment, yarn processing, and textile manufacturing requiring controlled bleaching action. Spinning mills employ sodium pyrosulfate for fiber preparation, yarn whitening, and textile quality enhancement.

Dye Removal & Color Stripping Textile finishing facilities utilize Sodium Pyrosulfate for dye removal, color stripping, and textile recycling requiring effective bleaching properties. Dyeing operations employ sodium pyrosulfate for color correction, fabric restoration, and textile reprocessing.

Textile Finishing & Quality Control Textile finishers use Sodium Pyrosulfate for final bleaching, quality enhancement, and textile finishing requiring consistent bleaching performance. Textile quality control operations employ sodium pyrosulfate for standardization and product optimization.

Paper Manufacturing Applications

Pulp Bleaching & Delignification Paper manufacturers utilize Sodium Pyrosulfate for pulp bleaching, lignin removal, and paper production requiring paper-grade quality. Pulp mills employ sodium pyrosulfate for brightness enhancement, delignification, and pulp processing optimization.

Paper Whitening & Brightness Enhancement Paper producers use Sodium Pyrosulfate for paper whitening, brightness improvement, and quality enhancement requiring controlled bleaching action. Paper mills employ sodium pyrosulfate for product standardization and quality consistency.

Recycled Paper Processing Recycling facilities utilize Sodium Pyrosulfate for deinking, ink removal, and recycled paper processing requiring effective bleaching properties. Paper recycling operations employ sodium pyrosulfate for fiber cleaning and product quality improvement.

Specialty Paper Production Specialty paper manufacturers use Sodium Pyrosulfate for high-grade papers, technical papers, and specialty applications requiring premium bleaching quality. Fine paper producers employ sodium pyrosulfate for luxury paper products and specialized applications.

Water Treatment Applications

Water Disinfection & Oxidation Water treatment facilities utilize Sodium Pyrosulfate for water disinfection, oxidation processes, and water purification requiring water treatment grade quality. Municipal water systems employ sodium pyrosulfate for pathogen control and water quality improvement.

Industrial Water Treatment Industrial facilities use Sodium Pyrosulfate for process water treatment, cooling water systems, and industrial water processing requiring technical-grade quality. Manufacturing operations employ sodium pyrosulfate for water system maintenance and quality control.

Wastewater Treatment & Remediation Wastewater treatment plants utilize Sodium Pyrosulfate for effluent treatment, oxidation processes, and environmental remediation requiring treatment-grade quality. Environmental companies employ sodium pyrosulfate for pollution control and waste processing.

Swimming Pool & Spa Treatment Pool maintenance companies use Sodium Pyrosulfate for pool sanitation, water treatment, and recreational water systems requiring pool-grade quality. Aquatic facilities employ sodium pyrosulfate for water quality maintenance and pathogen control.

Industrial Bleaching Applications

Chemical Manufacturing & Processing Chemical manufacturers utilize Sodium Pyrosulfate for chemical synthesis, oxidation reactions, and industrial processing requiring technical-grade quality. Chemical plants employ sodium pyrosulfate for intermediate production and specialty chemical manufacturing.

Pharmaceutical Manufacturing Pharmaceutical companies use Sodium Pyrosulfate for drug synthesis, intermediate production, and pharmaceutical processing requiring pharmaceutical-grade quality. API manufacturers employ sodium pyrosulfate for active ingredient synthesis and pharmaceutical applications.

Electronics & Semiconductor Processing Electronics manufacturers utilize Sodium Pyrosulfate for semiconductor cleaning, electronic component processing, and high-tech applications requiring electronic-grade quality. Semiconductor facilities employ sodium pyrosulfate for wafer cleaning and precision manufacturing.

Metal Treatment & Surface Processing Metal processing facilities use Sodium Pyrosulfate for metal cleaning, surface treatment, and industrial applications requiring industrial-grade quality. Metal finishing operations employ sodium pyrosulfate for surface preparation and metal processing.

Laboratory & Analytical Applications

Analytical Chemistry & Testing Analytical laboratories utilize Sodium Pyrosulfate for chemical analysis, reagent preparation, and analytical procedures requiring reagent-grade purity. Testing facilities employ sodium pyrosulfate for oxidation reactions, chemical testing, and laboratory procedures.

Research & Development Research laboratories use Sodium Pyrosulfate for research applications, experimental procedures, and scientific studies requiring laboratory-grade quality. Academic institutions employ sodium pyrosulfate for chemistry research, material science, and scientific investigations.

Quality Control & Standards Quality control laboratories utilize Sodium Pyrosulfate for standard preparation, calibration solutions, and testing procedures requiring analytical standards. Industrial laboratories employ sodium pyrosulfate for quality assurance, method validation, and analytical standards.

Educational & Academic Applications Educational institutions use Sodium Pyrosulfate for chemistry demonstrations, laboratory experiments, and educational applications requiring educational-grade quality. Schools employ sodium pyrosulfate for oxidation experiments, chemical reactions, and science education.

Food & Beverage Applications

Food Processing & Preservation Food manufacturers utilize Sodium Pyrosulfate for food processing, preservation applications, and food industry systems requiring food-grade quality. Food processors employ sodium pyrosulfate for approved applications and food safety enhancement.

Beverage Production & Treatment Beverage manufacturers use Sodium Pyrosulfate for beverage processing, quality control, and production systems requiring beverage-grade quality. Drink producers employ sodium pyrosulfate for product stabilization and quality maintenance.

Food Safety & Sanitation Food safety facilities utilize Sodium Pyrosulfate for sanitation, disinfection, and food safety applications requiring food-safe quality. Food processing plants employ sodium pyrosulfate for equipment cleaning and facility sanitation.

Agricultural Food Processing Agricultural processors use Sodium Pyrosulfate for post-harvest treatment, food processing, and agricultural applications requiring agricultural-grade quality. Farm processing operations employ sodium pyrosulfate for product quality and safety enhancement.

Environmental Applications

Air Pollution Control Environmental facilities utilize Sodium Pyrosulfate for air treatment, emission control, and environmental applications requiring environmental-grade quality. Pollution control systems employ sodium pyrosulfate for air purification and emission reduction.

Soil Treatment & Remediation Environmental companies use Sodium Pyrosulfate for soil treatment, contamination control, and environmental restoration requiring remediation-grade quality. Environmental contractors employ sodium pyrosulfate for site cleanup and soil rehabilitation.

Waste Management & Processing Waste management facilities utilize Sodium Pyrosulfate for waste treatment, processing systems, and environmental applications requiring treatment-grade quality. Waste processors employ sodium pyrosulfate for waste stabilization and processing optimization.

Marine & Aquatic Treatment Marine treatment facilities use Sodium Pyrosulfate for ballast water treatment, marine applications, and aquatic systems requiring marine-grade quality. Maritime operations employ sodium pyrosulfate for aquatic ecosystem protection and marine safety.

Mining & Mineral Processing

Ore Processing & Extraction Mining operations utilize Sodium Pyrosulfate for ore processing, mineral extraction, and mining applications requiring mining-grade quality. Mineral processing facilities employ sodium pyrosulfate for ore beneficiation and metal recovery.

Hydrometallurgy & Metal Recovery Metallurgical operations use Sodium Pyrosulfate for metal extraction, hydrometallurgical processes, and recovery applications requiring metallurgical-grade quality. Mining companies employ sodium pyrosulfate for precious metal recovery and processing.

Mineral Analysis & Exploration Geological surveys utilize Sodium Pyrosulfate for mineral analysis, exploration applications, and geological testing requiring analytical-grade quality. Mining exploration companies employ sodium pyrosulfate for sample preparation and mineral identification.

Coal Processing & Treatment Coal processing facilities use Sodium Pyrosulfate for coal treatment, cleaning processes, and coal preparation requiring industrial-grade quality. Coal companies employ sodium pyrosulfate for product quality improvement and environmental compliance.

Quality Control & Testing Procedures

Comprehensive Quality Assurance Every production batch undergoes extensive testing to ensure compliance with international standards, industrial specifications, and application requirements. Our quality control laboratory employs advanced analytical techniques including titration methods, spectroscopic analysis, and chemical testing. For comprehensive information about sodium pyrosulfate properties, safety guidelines, and industrial applications, visit EPA’s Chemical Substance Information which provides detailed technical data about chemical safety, environmental impact, and regulatory compliance for industrial bleaching agents.

Quality assurance procedures include:

• Sodium content determination using flame photometry
• Sulfur content analysis using ICP-OES methods
• Moisture content analysis using Karl Fischer titration
• Heavy metals testing using ICP-MS spectroscopy
• Chloride content determination using ion chromatography
• pH measurement using calibrated pH meters
• Solubility testing using standard procedures
• Purity analysis using titration methods
• Crystal structure confirmation using X-ray diffraction
• Particle size distribution using laser diffraction
• Thermal analysis using differential scanning calorimetry
• Stability testing under various environmental conditions

Application Guidelines & Best Practices

Textile Processing Methods Establish proper application procedures for Sodium Pyrosulfate including concentration ratios, treatment temperatures, and safety measures for optimal textile bleaching effectiveness and fabric quality protection.

Paper Manufacturing Guidelines Develop appropriate industrial procedures including dosing rates, process conditions, and quality control measures for maximum paper bleaching performance and production efficiency.

Water Treatment Procedures Implement proper treatment protocols including dosing calculations, contact time, and monitoring procedures for effective water treatment and environmental protection.

Storage & Handling Procedures Implement proper storage conditions including moisture protection, temperature control, and contamination prevention for maintaining sodium pyrosulfate quality and handling safety throughout storage periods.

Market Applications & Industry Trends

Textile Industry Growth Expanding textile manufacturing and growing demand for high-quality fabrics drive continued growth in textile-grade sodium pyrosulfate applications for bleaching and processing across global textile operations.

Paper Manufacturing Expansion Growing paper production and increasing demand for high-brightness papers support increased adoption of paper-grade sodium pyrosulfate for pulp bleaching and paper manufacturing.

Water Treatment Development Expanding water treatment requirements and growing environmental regulations drive growth in sodium pyrosulfate applications for water disinfection and oxidation processes.

Environmental Regulation Compliance Increasing environmental standards and sustainable manufacturing practices support continued adoption of eco-friendly bleaching agents for industrial and environmental applications.

Environmental & Regulatory Compliance

Chemical Safety Standards Sodium Pyrosulfate complies with OSHA chemical safety regulations, industrial hygiene standards, and international guidelines ensuring safe handling and use in industrial applications.

Environmental Protection Standards Compliance with EPA environmental regulations, discharge standards, and pollution prevention guidelines supports responsible use and environmental stewardship in industrial operations.

Textile & Paper Industry Standards Adherence to textile processing standards, paper manufacturing guidelines, and quality specifications ensures appropriate use in textile and paper production applications.

Water Treatment Regulations Compliance with drinking water standards, wastewater discharge regulations, and water quality guidelines ensures safe and effective use in water treatment applications.

Performance Advantages & Technical Benefits

✔ Multiple Purity Grades – Available in 98%, 99%, and 99.5% purity for specialized applications
✔ Excellent Bleaching Power – Effective oxidative bleaching for permanent results
✔ Multi-Industry Versatility – Suitable for textile, paper, water treatment, and industrial uses
✔ Chemical Stability – Maintains properties under proper storage conditions
✔ High Solubility – Excellent water solubility for easy application and processing
✔ Oxidizing Properties – Strong oxidizing agent for effective bleaching and treatment
✔ Cost Effectiveness – Economical bleaching solution for diverse applications
✔ Quality Consistency – Reliable composition with comprehensive analytical documentation
✔ Environmental Compatibility – Biodegradable with minimal environmental impact
✔ Process Efficiency – Fast-acting bleaching agent for optimized production cycles
✔ Regulatory Compliance – Meets industrial, environmental, and safety standards
✔ Technical Support – Complete application guidance and optimization assistance

Our Sodium Pyrosulfate products represent industry-leading standards in bleaching agent technology and multi-industry solutions, specifically formulated for demanding textile processing, paper manufacturing, water treatment, and industrial bleaching applications. We provide comprehensive technical support, application guidance, and regulatory consultation to ensure optimal performance across your specialized textile, paper, water treatment, or industrial bleaching applications.

For detailed specifications, certificates of analysis, or application-specific recommendations, contact our specialized chemicals division. We offer complete support including application optimization, regulatory guidance, and technical assistance to maximize effectiveness in your textile processing, paper manufacturing, water treatment, or industrial bleaching applications.

For more information about our products, feel free to Contact Us today.