| Customization: | Available |
|---|---|
| CAS No.: | 7681-57-4 |
| Formula: | Na2s2o5 |
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Product Name
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Sodium Metabisulfite
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Appearance
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White powder
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Formula
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Na2S2O5
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CAS No.
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7681-57-4
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HS CODE
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2832100000
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Storage
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Store in a segregated and approved area
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Usage
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Leather Treatment/Dyeing and Painting industry/Antiseptic/Bleach/loose agent
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Use 1
Used as bleach, mordant, reducing agent, rubber coagulant, also used in organic synthesis, pharmaceutical and fragrance
Use 2
Used as chromatographic reagents, preservatives and reducing agents in the dye and pharmaceutical industries
Use 3
Sodium pyrosulfite is more strongly reducing than sulfite and acts in a similar way to sodium sulfite. China stipulates that it can be used for preserves, cookies, sugar, rock sugar, caramel, candy, glucose, liquid glucose, bamboo shoots, mushrooms and canned mushrooms, with a maximum usage of 0.45g/kg. Residues of preserves, bamboo shoots, mushrooms and canned mushrooms, grapes and black currant concentrate (as SO2) less than 0.05/kg; Biscuits, sugar, vermicelli and other varieties of residue less than 0.1g/kg; The residual amount of liquid glucose should not exceed 0.2g/kg.
Use 4
Used in food industry as bleach, preservative, loose agent, antioxidant, color protection and fresh-keeping agent.
Application 5
The pharmaceutical industry is used to produce chloroform, phenylpropanone and benzaldehyde. Rubber industry used as a coagulant. Printing and dyeing industry used as dechlorination agent after cotton bleaching, cotton cooking auxiliary. Leather industry for leather processing, can make leather soft, full, tough, waterproof, anti-folding, wear and other properties. Chemical industry for the production of hydroxyvanillin, hydroxyamine hydrochloride and so on. Photosensitive industry used as developer, etc.
Application 6
Food additives, analytical reagents, preservatives, reducing agents, antioxidants, bleach agents
Food additive, analytical reagent, anticorrosive agent, reducing agent, antioxidant, bleach agent
| PRODUCT NAME: | SODIUM METABISULPHITE | Food grade |
| PACKAGE : | 25KG/1250 KG BAGS WITH PALLETS | |
| ITEMS | STANDARD | RESULT |
Na2S2O5 |
97% MIN | 97.50% |
| SO2 | 65%MIN | 65.68% |
| Iron (Fe) | 0.003%MAX | 0.0018% |
| Heavy Metals as Pb | 0.0005% MAX | 0.0004% |
| Chloride(CL) | 0.01%MAX | 0.008% |
| Arsenic | 0.0001% MAX | 0.00006% |
| Water Insoluble | 0.05%MAX | 0.03% |
| PH value | 4-4.6 | 4.5 |
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