Sodium Sulfite, Reagent A.C.S.

Assay:≥98.0%
Na2SO3
MAXIMUM ALLOWABLE 
Insoluble matter: 0.005%
Free acid: Passes test
Titrable free base: 0.03 meq/g
Chloride (Cl): 0.02%
Heavy metals (as Pb): 0.001%
Iron (Fe): 0.001%
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