SODIUM METABISULFITE (SMBS)

Sodium Metabisulfite for Food, Beverage & Industrial Applications

Sodium metabisulfite (Na₂S₂O₅) presents as white crystalline powder with exceptional preservative and antioxidant properties, serving critical functions across wine production, food processing, brewing operations, water treatment, and industrial chemical applications. When dissolved in water it forms sodium bisulfite, functioning as a disinfectant, antioxidant, and preservative agent. This versatile sulfite compound provides unique sulfur dioxide generation capabilities essential for beverage stabilization, food preservation, and specialized industrial processes requiring controlled antimicrobial activity.

At Chemicals & Process Equipment Limited, we supply food-grade and technical-grade Sodium Metabisulfite (97% minimum purity) manufactured under FDA-approved Good Manufacturing Practices (GMP) standards and food safety specifications. Our product portfolio meets stringent quality requirements for food processing, beverage production, and industrial applications across global markets.

✅ Food Grade Standards – E223 Food Additive Compliance
✅ Technical Quality Control – Industrial & Chemical Manufacturing
✅ Laboratory Grade Certification – Research & Development Quality
✅ Multi-Application Platform – Versatile Preservative Performance
✅ Complete Documentation – Comprehensive Quality Assurance Package

Technical Specifications & Chemical Properties

Specialized Packaging Solutions:

• 25kg PE bags with moisture-resistant barrier and food-grade liner
• 500kg Fiber drums with humidity-controlled interior sealing
• 1000kg Bulk bags for high-volume food processing operations
• Nitrogen-purged packaging for premium food-grade applications

Wine Making & Beverage Production Applications

Wine Stabilization & Preservation Sodium Metabisulfite is a common additive used to preserve and stabilize wines, ciders, and occasionally beers. When added to wine or must, it forms sulfur dioxide gas (SO2). Metabisulfites are compounds that contain sulfur utilized by winemakers as preservatives to prevent oxidation and bacterial spoilage, preventing wines from losing their hues and distinctive flavors.

Antimicrobial & Antioxidant Properties Sodium Metabisulfite is a versatile winemaking agent used primarily as an antioxidant, sterilant, and stabilizer. This prevents most wild microorganisms from growing and acts as a potent antioxidant, protecting both the color and flavor profiles of wines.

Wine Dosage & Application Guidelines At bottling time we recommend adding 1/16 teaspoon of either sodium or potassium metabisulfite for each gallon of wine to protect from spoilage. For sulphite additions in wine: Dissolve 3 grams (1/2 tsp) per 23 L of wine to give 50 ppm, ensuring optimal preservation without affecting taste quality.

Sanitization Solutions To make a 2.5% sanitizing solution, sodium metabisulfite provides effective sterilization for winemaking equipment, fermentation vessels, and bottling systems, preventing contamination throughout the production process.

For comprehensive information on sodium metabisulfite applications in wine production, refer to this detailed winemaking preservation guide by ScienceDirect. Our food chemicals expertise provides specialized guidance for optimal wine preservation performance.

Food Preservation & Processing Applications

Food Additive E223 Applications Sodium Metabisulfite, Granular, FCC is used as a preservative and antioxidant in food and is also known as E223. The FCC grade meets the requirements of the Food Chemical Codex and is suitable for all food, beverage and nutritional supplement applications.

Dried Fruits & Vegetable Processing Sodium metabisulfite prevents enzymatic browning and maintains natural colors in dried fruits, dehydrated vegetables, and processed food products. It extends shelf life by inhibiting microbial growth and preserving nutritional content during processing and storage operations.

Seafood & Meat Preservation In seafood processing, sodium metabisulfite prevents melanosis (black spot) in shrimp and crustaceans, maintaining product appearance and marketability. It serves as an effective preservative in processed meats, preventing oxidation and extending shelf life.

Beverage Industry Applications Beyond wine production, sodium metabisulfite functions as a preservative in fruit juices, soft drinks, and specialty beverages, preventing fermentation, maintaining flavor stability, and extending product shelf life.

Industrial & Chemical Processing Applications

Textile & Photography Industry It is widely used as reducing agent in textile and photography industry. In textile processing, sodium metabisulfite serves as a bleaching agent, dechlorination chemical, and reducing agent for synthetic fiber production and fabric treatment operations.

Photographic Processing In photographic applications, sodium metabisulfite functions as a developer, fixer component, and preservation agent for photographic solutions, maintaining chemical stability and preventing oxidation of photographic compounds.

Chemical Synthesis & Manufacturing Sodium metabisulfite was used to initiate the cross-linking of polybutadiene in the cores of the vesicle membranes by free radical polymerization in solution, demonstrating its versatility in advanced polymer chemistry and material science applications.

Water Treatment Applications Sodium metabisulfite serves as an effective dechlorination agent in water treatment systems, neutralizing residual chlorine in municipal and industrial water supplies. It functions as an oxygen scavenger in boiler water treatment and prevents corrosion in closed-loop water systems.

Pharmaceutical & Laboratory Applications

Pharmaceutical Manufacturing In pharmaceutical production, sodium metabisulfite serves as an antioxidant, stabilizer, and reducing agent in drug formulations. It prevents oxidation of active pharmaceutical ingredients and maintains product stability during storage and distribution.

Laboratory & Analytical Applications Sodium metabisulfite functions as a reagent in analytical chemistry, sample preservation, and laboratory testing procedures. Reagent grade specifications (97% purity) meet analytical requirements for research and quality control applications.

Research & Development In research applications, sodium metabisulfite enables controlled reduction reactions, serves as a sulfur dioxide source, and facilitates specialized chemical synthesis in pharmaceutical and materials research.

Mining & Metallurgical Applications

Ore Processing & Flotation Sodium metabisulfite serves as a depressant and reducing agent in mineral flotation processes, enabling selective separation of sulfide minerals and improving concentrate grades in complex ore processing operations.

Metal Recovery & Purification In hydrometallurgical processes, sodium metabisulfite functions as a reducing agent for metal recovery operations, precious metal extraction, and purification processes requiring controlled reduction conditions.

Environmental Remediation Sodium metabisulfite enables treatment of metal-contaminated waters, neutralization of oxidizing compounds, and environmental cleanup applications in mining and industrial sites.

Quality Control & Analytical Testing

Comprehensive Quality Assurance Every production batch undergoes extensive testing to ensure compliance with food-grade, pharmaceutical, and technical specifications. Our quality control laboratory employs advanced analytical techniques including iodometric titration, gravimetric analysis, and spectroscopic methods to verify purity and SO₂ content.

Quality testing procedures include:

• SO₂ content determination via iodometric titration
• Purity analysis through gravimetric methods
• Heavy metals testing by atomic absorption spectroscopy
• Moisture content analysis via Karl Fischer titration
• pH measurement using calibrated electrode systems
• Particle size distribution by laser diffraction analysis

Storage & Handling Specifications

Optimal Storage Requirements

• Store in cool, dry conditions between 15-25°C with controlled humidity
• Protect from moisture, heat, and direct sunlight exposure
• Maintain in tightly sealed containers to prevent SO₂ loss
• Separate from strong oxidizing agents and alkaline materials
• Implement controlled atmosphere storage for food-grade applications

Professional Handling Guidelines

• Use appropriate personal protective equipment including respirators and chemical-resistant gloves
• Provide adequate ventilation during material handling and processing operations
• Avoid dust generation through controlled transfer procedures
• Maintain emergency eyewash and safety shower facilities in work areas
• Follow food-grade handling protocols for E223 applications

Environmental & Safety Considerations

Environmental Impact Management Sodium metabisulfite provides environmentally favorable alternatives to other preservatives in many applications. It decomposes naturally to sodium sulfate and sulfur dioxide, minimizing long-term environmental accumulation while maintaining preservation effectiveness.

Workplace Safety Protocols Established occupational exposure limits ensure safe workplace handling during sodium metabisulfite processing and application operations. Proper ventilation, personal protective equipment, and emergency response procedures maintain worker safety and health protection.

Food Safety Compliance Our sodium metabisulfite meets FDA regulations for food additives, EU food safety standards, and international food safety requirements. Complete documentation ensures regulatory compliance for food processing applications.

Regulatory Compliance & Documentation

Food Safety Standards Complete documentation includes certificates of analysis, food safety data sheets, regulatory compliance statements, and quality management system certification for food processing applications meeting international standards.

Industrial Safety Compliance

• Safety Data Sheets with GHS classification and hazard communication
• Transportation documentation per UN/DOT regulations
• Environmental impact assessment for industrial applications
• Occupational health and safety guidelines for workplace use

Advanced Applications & Emerging Uses

Biotechnology & Pharmaceuticals Emerging applications include use as a stabilizer in biotechnology products, vaccine preservation, and advanced pharmaceutical formulations requiring controlled antioxidant properties and extended stability.

Environmental Technology Advanced environmental applications include air pollution control, flue gas desulfurization, and industrial emission treatment systems utilizing sodium metabisulfite’s reducing properties.

Specialty Chemicals In specialty chemical manufacturing, sodium metabisulfite enables production of fine chemicals, intermediates, and advanced materials requiring precise reduction chemistry and controlled reaction conditions.

Why Choose Chemicals & Process Equipment Limited?

✔ Multi-Grade Excellence – Food, pharmaceutical, technical, and laboratory specifications available ✔ Quality Leadership – Advanced testing ensures consistent high-purity standards ✔ Application Expertise – Technical support across diverse food and industrial applications ✔ Regulatory Assurance – Complete documentation for food safety and industrial compliance ✔ Global Distribution – Reliable supply chain supporting international food and beverage operations

Our sodium metabisulfite products represent the highest standards in food-grade chemistry, specifically formulated for demanding wine production, food processing, and industrial applications. We provide comprehensive technical support, regulatory documentation, and quality assurance to ensure optimal performance across your specialized preservation and chemical processes.

For detailed specifications, application protocols, or regulatory documentation, contact our specialized food chemicals team. We provide comprehensive support including dosage optimization, preservation protocols, and regulatory compliance assistance to maximize effectiveness in your wine making, food processing, or industrial applications.