CAS:7681-57-4
分子式: Na2O5S2

产品通用描述：
Prodcut: Sodium Metabisulphite
Molecular formula: Na2S2O5
1. Industrial grade sodium metabisulfite
Quality standard: HG/T2826-1997
Item: high-rate, first-rate
Content (based on Na2S2O5): ≥95.0% / 96.4%
Iron < (Fe): ≤0.005% / 0.004%
Insoluble substance in water: ≤0.05 / 0.05
main use:leather tanning, cloth knitting, organic matters blanching, mordants

2. Food grade sodium metabisulfite
Quality standard: GB1893-1998
Main content (base on Na2S2O5): ≥95.0%; (based on SO2): ≥65.0%
Iro

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