^{_{Sodium Metabisulfite}}

H. S. CODE: 28331900
CAS No.: 7681-57-4
Molecular formula: Na2S2O5

Molecular weight: 190.10
Quality standard: GB1893-86
Property: White or light yellow crystalline powder or small crystal, with SO2 odor, Sg 1.4.
Use: Used in drug, food, ferment, rubber, textile, photo, flavor, dyes, tannage and preservative of fruit and vegetable.
Packing: Packing: external polypropylene woven bag, polyethylene plastic bag lining.

Net weight:25kg /bag 50kg /bag 1000kg /bag

Specification:
Na2s2o5 (%)97min
Fe (%) 0.005max
Water insoluble matter (%)  0.05max
As (%) 0.0002max
So2 (%) 65.0

PH: 4-6