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Industrial Grade Sodium Metabisulfite
Jinan Spark provides high-quality Food Grade and Industrial Grade Sodium Metabisulfite (CAS:7681-57-4). Sodium Metabisulfite is white crystalline powder with powerful reducing, bleaching and antioxidant properties. As a versatile additive, Sodium Metabisulfite is widely applied in food preservation, fruit and vegetable color retention, wine fermentation, textile printing and dyeing, wastewater treatment, mineral flotation and pulp bleaching industries.
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Product Description
1. Product Introduction of Industrial Grade Sodium Metabisulfite
Sodium Metabisulfite (also called Sodium Pyrosulfite, CAS No.:7681-57-4), molecular formula Na2S2O5, is a widely used inorganic sulfite raw material.
Jinan Spark supplies two grades: Food Grade Sodium Metabisulfite and Industrial Grade Sodium Metabisulfite. It appears as white crystalline powder, freely soluble in water with weakly acidic aqueous solution.
With powerful reduction, bleaching, anti-oxidation and preservative properties, SMBS is an essential material for food processing, textile printing & dyeing, wastewater treatment, mineral flotation and fine chemical industries worldwide.
2. Product Specifications of Industrial Grade Sodium Metabisulfite
Basic Information
CAS Number: 7681-57-4
Molecular Formula: Na2S2O5
Molecular Weight:190.11
Appearance: White or slight yellow crystalline powder
Quality Standard
|
Items |
Standard |
|
Sodium Metabisulfite content,% |
≥96.5 |
|
Iron (Fe),% |
≤0.005 |
|
Insoluble matter,% |
≤0.05 |
|
Arsenic (As),% |
≤0.0001 |
3. Product Advantages of Industrial Grade Sodium Metabisulfite
★ Powerful reducing property with competitive cost. Excellent performance on bleaching, dechlorination and reduction, ideal for large-scale industrial production such as textile, wastewater treatment and mineral flotation.
★Fast dissolution & stable quality. White crystalline powder dissolves quickly in normal temperature water. Consistent specifications between batches for continuous industrial production.
★ Controlled impurities. Strictly limit iron content and water-insoluble substances to prevent pipeline blockage and material yellowing in production process.
4. Applications of Industrial Grade Sodium Metabisulfite
★Textile Printing & Dyeing
Used as bleaching agent, dechlorinating agent and mordant. Remove residual oxidants on cotton, linen and silk fabric to prevent yellowing; stabilize dyeing effect and improve fabric whiteness.
★Wastewater Treatment
Efficient reducing agent to eliminate residual chlorine and reduce heavy metal ions such as hexavalent chromium. Ideal for electroplating wastewater decolorization and pretreatment.
★Paper & Wood Processing
Bleaching agent for pulp and bamboo timber. Remove lignin gently without damaging fiber structure, improve whiteness of paper and wood products.
★Mining & Fine Chemicals
Flotation reagent for non-ferrous metal ore; reducing agent for organic synthesis; antioxidant for pharmaceutical intermediates and fragrance manufacturing; coagulant in rubber industry.
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