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Sodium Metabisulphite Food Grade |
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Item |
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Specifications (FG) |
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Appearance |
White crystal powder |
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Purity ( Na2S2O5) |
≥98.0% |
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Sulfur Dioxide(SO2) |
≥65.0% |
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Heavy Metals (Pb) |
≤0.0005% |
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Arsenic (As) |
≤0.0002% |
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Iron (Fe) |
≤0.0015% |
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Water Insolube |
≤0.02% |
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PH |
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4.0-4.8 |
CAS No: 7681-57-4
EINECS No: 231-673-0
Specification: Food Grade
Packing: 25kg / bag
Sodium metabisulfite serves as a conservation and anti-oxidation agent. It is mainly used to protect shellfish against melanosis. Thanks to its extremely high purity and quality, sodium metabisulfite conserves food without affecting the flavor.
Besides, it is also as mordant for printing & dyeing; as dechlorinating agent for textile bleaching; as reducing agent and sulfonating agent for chemical and medical industries etc.