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الشخص الذي يمكن الاتصال به Shery
***** or yellowish crystalline powder 2.PackageIn PP woven bag lined with PE bag. *5, *0, ***0 kgs/bag. 3.Shiping: Tianjin Port 4.production specifications : Industrial Grade Sodium Metabisulfite Item Superior Grade First Grade Content(Na2S2O5)≥ *6.0 *4.0 Fe %≤ 0.**5 0.**0 Insoluble Substance in Water 0.*5 0.*5 As %≤ 0.***1 Uses: Dyeing mordant, dechlorinating agent for washed fabric, medical deoxidizer and sulfonating agent, bone black for bamboo, wood and paper fiber, non-ferrous mineral separation agent, waste water disposing agent, rubber coagulator. Food grade Item Index Content (SO2)≥ *5.0 Fe % ≤ 0.**5 Insoluble Substance in What 0.*5 Heavy Metal (Pb)%≤ 0.**2 As %≤ 0.***2 PH 4.*6.0 Use :Bleaching agent(for sugar, pastry, dried slices of tender bamboo shoots, etc ), loosening agent(for bread, biscuit, etc ), corrosion protection antiseptic(fruit juice, can, etc ), antioxidant(for lily flower, sea food, fruit, vetegable, etc ) . Packing: external polypropylene woven bag, polyethylene plastic bag lining.