| Specification Sheet |
| Products name: |
Sodium Metabisulphite |
| Molecular Formula: |
Na2S2O5 |
| CAS No.: |
7681-57-4 |
| Molecular Weight: |
190.12 |
| Appearance: |
White or light yellow powder. |
| Odor: |
Wet condition with strong SO2 smell, Dry none. |
| Properties: |
It is soluble in water and alcohol. |
| Use: |
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. |
| Shelf time: |
180days |
| Packages: |
25kgs iron drums, cartons, woven bags. |
| Storage & Transportation: |
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 oxidze easlier to sodium sulphate. |
| Technical Grade: |
Na2S2O5 |
≥96% |
Iron(Fe) |
≤50ppm |
water insolubles |
≤0.05% |
Arsenic(As) |
≤1ppm |
|
