Product Description

Chemical formula: Na2S2O5 CAS No: 7681-57-4 Physical appearance: White or slightly yellowish crystalline powder Application: Bleaching agent for textile fibres; Colors stripper and dechlorination; Preparation of Indigo Vat Dye; Solubilizing and acid dyeing agent for leather industries; Bleaching agent for paper pulps; Preservative and sterilisation agent for food industries Shelf life: 6 months Package: 25kg compound plastic woven bag with inner polythene liner; 1000kg or 1100kg Jumbo bags Shelf Life: 6 months Storage & handling: Store the product in a cool and dry place; Prevent from direct sunlight, water and moisture; Avoid contact with strong acid, oxidants or poisonous substances. Exposure to moisture will make it oxide easily to sodium sulphate. Do not store it for long time. Product Specification: Technical Grade Na2S2O5 96% Iron(Fe) 50ppm Water insolubles 0.05% Arsenic(As) 1ppm Food Grade Na2S2O5 96.5%(SO2 65%) Iron(Fe) 50ppm Solution appearance slightly cloudy Arsenic(As) 1ppm Heavy metal(as Pb) 10ppm