- Product Name: Sodium Metabisulfite
- CAS: 7681-57-4
- Catalog: HG-BULK014
- Applications: Food and Industrial industries.
Known for its powerful bleaching, disinfecting, and reducing properties, sodium metabisulfite is a versatile chemical compound widely used across various industries. Alfa Chemistry offers high-quality sodium metabisulfite, available in both food-grade and industrial-grade formulations, catering to diverse applications in food preservation, chemical manufacturing, water treatment, and more.
Key Features
Appearance
- White to slightly yellow crystalline powder.
Purity
- Alfa Chemistry ensures the highest purity standards, offering sodium metabisulfite suitable for both food and industrial applications.
Technical Data
| Items | Food grade | Industrial grade |
| Na2S2O5 content | ≥ 98.0% | ≥97.0% |
| SO2 content | ≥65.0% | ≥65.0% |
| Heavy metals (as Pb) | ≤ 0.0005% | - |
| Insoluble matter | ≤ 0.02% | ≤ 0.05% |
| As | ≤ 0.0002% | - |
| Se | ≤ 0.0005% | - |
| Fe | ≤ 0.001% | ≤ 0.002% |
| pH | 4.0-4.8 | 4.0-4.8 |
Applications
Sodium metabisulfite offered by Alfa Chemistry serves many industrial and scientific purposes:
Food Industry
- Bleaching Agent: Used in candies, cakes, and bamboo shoots for whitening.
- Leavening Agent: It adds volume and improves texture in baked goods such as bread and biscuits.
- Preservative and Disinfectant: It extends the shelf life of fruits, vegetables, seafood, and other perishables by preventing microbial growth and spoilage.
- Inhibitor: It protects the freshness and color of food items like lilies and other delicate produce.
Industrial Applications
- Textile Industry: It acts as a mordant in dyeing processes and helps dechlorinate fabrics post-bleaching.
- Chemical Manufacturing: It functions as a sulfonating agent and reducing agent in chemical reactions.
- Pulp and Paper Industry: Used for bleaching pulp, bamboo, and wood, enhancing the whiteness of paper products.
- Water Treatment: It plays a key role in de-chlorination and the treatment of wastewater in various industrial applications.
- Rubber Industry: It serves as a coagulating agent in rubber processing.
Storage and Packaging
- Storage Conditions: Stored in a cool, dry place, away from moisture, heat, and direct sunlight. Proper sealing of the packaging is crucial to prevent oxidation and degradation.
- Packaging: Commonly packaged in 25 kg plastic woven bags. Larger bulk packaging options are also available, including 50 kg, 500 kg, and 1000 kg bags.
By choosing Alfa Chemistry's sodium metabisulfite, industries can rely on a high-quality product that meets their needs for food safety, industrial processing, and environmental sustainability. For more information, please feel free to contact us.
