1) Synonyms: Sodium acid sulfite; Sodium hydrogen sulfite, solid 2) CAS No.: 7631-90-53) H.S.Code: 283210004) Spec.:Purity 99%;Water-Insoluble Matter 0.01%;Iron(Fe) 0.0015%;Ph Value 4.3;Cl <0.01%; Pb<0.001%;As <0.00001% 5) Packing: in 25kg plastic woven bags.25MT/20'FCL

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