钠metabisulfite

sodium pyrosulphite food grade sodium metabisulfite PRODUCT Na2S2O5ANALYSIS DATE15th,April,2009PARAMETERSTANDARDRESULTCONTENT(Na2s2o5)95%97.49%SO2%65%65.44%WATER INSOLUBLE0.05%0.01%IRON(Fe)%0.005%0.002%HEAVYMETAL(Pb%) 0.002%0.001%ARSENIC(As%)0.0002%0.0002%PH4.0-4.64.4ANALYSIS RESULTQUALIFIEDREMARKQUALIFIEDThe industrial grade sodium metabisulfite Main purpose: 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. Packing: external polypropylene woven bag, polyethylene plastic bag lining. Food-grade sodium metabisulfite Main purposes: 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 )