Sodium metabisulfiteCAS No. : 7681-57-4EINECS No.: 231-673-0 MF : Na2S2O5Purity : ≥97%Appearance : White or yellow crystalline.Nature :1. Sodium metabisulfite solution 1 water soluble in glycerin, slightly soluble in ethanol. The acidic aqueous solution.2. sodium metabisulfite wet easy biodegradation, open air oxidation of sodium sulfate at home.Quality index :Test ItemsUnit Of MeasureLab Test ResultsContent (Na2S2O5)%≥ 97.0≥ 97.3The iron content of (Fe)%≤ 0.005≤ 0.004The content ...