Properties:
White or light yellow powder, it is soluble in water and alcohol.
Application:
Bleaching agent for textile,Colors stripper and dechlorination, preparation of indigo vat dyes, Solubilizing and acidyfing agent for leather, Bleaching agent for paper pulps,preservative and sterilisation agent for food industry.
White or light yellow powder, it is soluble in water and alcohol.
Application:
Bleaching agent for textile,Colors stripper and dechlorination, preparation of indigo vat dyes, Solubilizing and acidyfing agent for leather, Bleaching agent for paper pulps,preservative and sterilisation agent for food industry.
| Index |
Standard |
|
| Food grade |
Tech grade |
|
| Purity |
97%min |
97%min |
| SO2 |
65%min |
65%min |
| Na2SO4 |
2.0%max |
2.0%max |
| Water insoluble |
0.05%max |
0.05%max |
| Particle size (200 mesh) |
85%min |
85%min |
| PH Value |
4.5-5.5 |
4-6 |
| Fe |
5ppm max |
5ppm max |
| Heavy metal |
10ppm max |
-- |
| As |
1ppm max |
-- |