1.MainContent(Na2S2O5):98% 2.CAS No.: 7681-57-4 3.Quality standard:GB1983-1998 4.Appearance:white crystalline powder

Detailed Product Description: 

Key Specifications / Special Features:
Molecular Formula	Na2S2O5
CAS No.	7681-57-4
Appearance	white crystalline powder
Quality standard	GB1983-1998
Technical Index
MainContent(Na2S2O5)	≥98%
Iron(as Fe) %	≤0.001
Heavy metals(as Pb) %	≤0.001
Arsenic(as As) %	≤0.0002
Packing : 25kg PP bag with PE film, or 25kg PE bag.

Application:

1.  bleaching agent for textile fibres;

2.  colors stripper and dechlorination; preparation of Indigo Vat Dye;

3.  solubilizing and acidyfing agent for leather industries ;

4.  bleaching agent for paper pulps;

5.  preservative and sterilisation agent for food industries.

Storage & handling:

Store the product in a cool and dry place so as to prevent from direct sunlight ,water and moisture avoid contact with strong acid,oxidants or poisonous substances.

sodium metabisulfite