Sodium Metabisulphite 95%-97% is a Inorganic Chemicals product. Key specs — Origin: China.
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
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