Метабисульфит натрия (CAS 7681-57-4 Нет .:)

Appearance ;White or yellowish crystalline powder1.food gradeItemSpecificationAssay(as Na2S2O5 )%≥96.0Iron content(base on Fe) %≤0.005Arsenic content(base on Pb) ≤0.001Arsenic content(base on As) ≤0.0002water insoluble matter %≤slight cloudyUses; Bleaching agent(such as candy, cakes, dried slices of tender bamboo shoots etc.) Loosening agent(such as bread, biscuits etc.)preservative,disinfector(such as jam and can etc.); Antioxidant, antistaling agent(such as seafood, fruits, vegetables etc.)2.ItemSpecificationAssay(as Na2S2O5 )%≥ 96.0 Iron content(base on Fe) %≤ 0.005 water insoluble matter %≤ 0.05 Arsenic content(base on As) ≤ 0.0001 Uses:Dye printing mordant; Textile antichlor after being bleached Reducing agent and sulfonating agent for chemical and medical use Bamboo, wood, paper fiber bleaching agent, non-ferrous metal ore dressing agent, wastewater treating , rubber freezing agent;Packing:Packed in polypropylene bag lined with polyethylene bag.Loading:27MT/FCL