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Sodium Sulphide
Sodium Hydrosulfide
Sodium Hydroxide
Formic Acid
Sodium Formate
Sodium Metabisulfite
Oxalic Acid
Vanadium Pentoxide
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Sodium Metabisulfite

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

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 preservativeof fruit and vegetable.
Packing: 25kgs plastic woven bags

Specification:

Na2S2O5 (%)

97.5MIN

Fe(Fe)(%)

0.003MAX

Water insolubles(%)

0.005MAX

Chloride(Cl)(%)

0.003MAX

Heavy metal(Pb)(%)

0.001MAX

Arsenic(As)(%)

0.0001MAX

PH value

3.2-4.6

Sodium metabisulfite


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