Sodium Metabisulphite

"Unisonchem" is a reliable supplier and serious producer for "Sodium Metabisulphite" here inTianjin, China for partners from all over the world with experience of over 8 years. Commodity: Sodium Metabisulphite Molecular Formular: Na2S2O5 HS Code: 28321000 CAS No.: 7681-57-4 Purity (SO2): 65% min Iron (Fe): 0.005% max Heavy metal (Pb): 0.002% max Water insolube: 0.05% max As: 0.0002% max PH: 4.0-4.6 Description: white or light yellow crystal powder. Relative density 1.4,soluble in water, water solution is acidity, soluble in glycerin and slightly soluble in ethanol. It is easy to be decompose and oxided Na2SO4 in air. -Application: **Bleaching agent for textile fibres and paper pulps; Colors stripper and dechlorination **Preparation of indigo vat dye; Solubilizing and acidying agent for leather industries **Preservation and sterilization agent for food industries; sterilization and antisepsis of beverage. -Packing:in pp bag of 25kg net each,with PE liner -Quantity: 25mt/20'Fcl