Sodium Sulfite

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Product Description Specification for Industry Grade and Food Grade: Item Quality Index Industry Grade Food Grade Purity ( As Na2SO3) 96.0% min 98.0% min Sodium sulphate ( SO4) 2.0% max 1.0% max Chlorides ( As NaCL) 0.5% max 0.1% max Arsenic ( As ) - 0.0002% max Heavy metals ( As Pb ) - 0.0005% max Iron (Fe) 0.005% max 0.002% max Water insolubles 0.05% max 0.02% max Item Quality Index Photo Grade Pharmaceutical Grade Purity ( As Na2SO3) 98.0% min 98.0% min Sodium sulphate ( SO4 ) 1.0% max 1.0% max Chlorides ( As CL - ) 0.05% max 0.05% max Arsenic ( As ) 0.0002% max 2ppm max Lead ( As Pb) 0.0005% max 2ppm max Iron (Fe) 0.001% max 5ppm max Selenium ( Se) 0.0001% max 1ppm max Zinc ( Zn) 0.0001% max 1ppm max Copper ( Cu ) 0.0001% max 0.1ppm max Mercury ( Hg) 0.0001% max 0.1 ppm max

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Tianjin bangtai Chemicals Imp.&Exp. Co., Ltd

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