H. S. CODE: 28321000 CAS NO.: 7631-90-5 Molecular formula: NaHSO3 Property: White crystalline powder, have odor of sulfur dioxide, part of sulphur dioxide loss when exposing in the air , at the same time generate sulfate. Main application: Mainly used in petrochemical, pharmaceutical, dyestuff industry, for reducing agents, preservatives etc. Packing: in 25kg plastic woven bag .
Item
Specification
Sodium bisulphite
99% min
SO2
62% min
Fe
0.003% max
Water insoluble matter
0.02% max
Chloride
0.05% max
As
0.0025% max
Heavy Metal (as Pb)
0.002% max
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