Sodium metabisulfite 1.Both food & tech grade 2.Steady ... .Nicest price &Good service 4.Prompt delivery Specification of the Sodium metabisulphite1,Molecular formula : Na2S2O52,Molecular weight : 190.103,Appearance ... , the thickness ≥0.05mm. There are "food additives Sodium metabisulfite" printed on the external packing, with the sign ... Yueyang Sanxiang Chemical Co.,Ltd. 96.5% min Sodium metabisulfite