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Sodium Metabisulphite 7681-57-4
Category : Inorganic chemicals
CAS NO : 7681-57-4 EC NO : 231-673-0 MF : Na2S2O5 MW : 190.1065 Product description : Sodium Metabisulphite
MF: Na2S2O5
CAS No.: 7681-57-4
Molecular: 190.12
Usage: dying, organic synthesis, printing, leather, pharmacy and so on
Packaging: Net 25kgs, 50kgs plastic woven bags with inner liner
ITEM
SPECIFICATION
Na2S2O5
≥ 97.0%
SO2
≥ 65.0%
Iron (Fe)
≤ 0.005%
insoluble in water
≤ 0.05%
PH Value
4.0-4.6
Arsenic (as As)
≤ 0.0001%
Heavy metal (base on Pb)
≤ 0.001%
Synonyms : Sodium pyrosulfite;disodium disulphite;Sodium metabisulphite;Sodium disulphite;Sodium pyrosulphite;SODIUM DISULFITE;disodium oxidosulfanesulfonate oxide;Sodium Metabi;Metabisulfite Sodium;Sodium Metabisulfite (Food Grade); Molecular Structure : 
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Sodium Metabisulphite