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Sodium Hydrosulfite 88%MIN

Sodium Hydrosulfite 88%MIN
Formula: Na2S2O4 CAS: 7775-14-6

Packing: in 50KG Iron Drums
Specification：
ITEM UNIT STANDARD
Sodium Hydrosulphite % 88 min
Water insoluble % 0.1 max
Sodium thiosulfate: Na2S2O3 % 1.2 max
Sodium metabisulfite: Na2S2O5 % 5-7
Sodium bisulfite:NaHSO3 % 0.5 max
Sodium carbonate: Na2CO3 % 0.6-2 max
Sodium formate: HCOONa % 0.5 max
Zn % 0.0001 max
Fe % 0.005 max

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