Sodium Metabisulfite Supplier
Brief Introduction
HS Code 28311000
CAS No 7681-57-4
Molecular Formula Na2S2O5
Molecular Mass 190.107 g/mol
Density 1.48 g/cm3
Specification
Item Standard
Assay ( as Na2S2O5 ) >=97%
PH value 4.0-4.6
Heavy metal (Pb) <=0.002%
As <=0.0002%
Fe <=0.005%
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