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Sodium Metabisulphite Food Grade CAS 7681-57-4
Sodium Metabisulphite Product Description
Sodium Metabisulphite Food Grade
Purity:98%min
CAS No.:7681-57-4
MF:Na2S2O5
Appearance:White crystal powder
Place of Origin:China (Mainland)
Sodium Metabisulphite Specification
Index | Content | |
Food grade | Industrial grade | |
Purity ( As Na2S2O5) | 98.0% min | 97.0% min |
Sulfur Dioxide( SO2) | 65.0% min | 65.0% min |
Arsenic ( As ) | 0.0002% max | - |
Heavy metals ( As Pb ) | 0.0005% max | - |
Selenium (Se ) | 0.0005% max | - |
Iron (Fe) | 0.001% max | 0.002% max |
Water insoluble | 0.02% max | 0.05% max |
PH value : | 4.0-4.8 | 4.0-4.8 |
Purity ( As Na2S2O5) | 98.0% min | 96.0% min |
Sodium Metabisulphite Application
Industry Grade
1.Mordant:printing and dyeing industry
2.Bleaching Agent: waste water/textile/paper pulp/bamboo/timber
3.Rubber solidifying agent
4.Hydrocarbon perfume aldehyde: perfume industry
Food Grade
1.Bleaching agent (e.g. candies, cake, bamboo shoots)
2.Loosening agent (e.g. bread, cracker)
3.Antiseptic and germicide (e.g. fruit juice, tinned food brews, the cereals food)
4.Inhibitor and freshen agent (e.g. day lily, seafood, fruitand vegetable)
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