| Classification: | Other Inorganic Salts |
|---|---|
| Application: | food additives |
| Appearance: | white powder |
| Purity: | 97 |
| Grade Standard: | Food Grade,Industrial Grade |
| CAS No.: | 7681-57-4 |
| Place of Origin: | China (Mainland) |
| Other Names: | smbs |
Quick Details
Specifications
: 
Sodium metabisulphite
Sodium metabisulphite 2.Application: bleaching agent for textile fibres;Colors stripper and dechlorination; preparation of Indigo Vat Dye,solubilizing and acidyfing agent for leather industries,bleaching agent forpaper pulps;preserv -ative and sterilisation agent for food industries.
3.Package: 25kg /50kg compound plastic woven bag with inner polythene liner,1000kg Jumbo bags,Any other particular requirements to the package can be discussed.
4.Shelf Life half one year.
5.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 oxidze easily to sodium sulphate.Do not store it for long time.
6.
| item | tech grade | food grade |
| Na2S2O5 | >96.5% | > 97% |
| SO2 | ......... | >65% |
| Fe | <0.005% | <0.005% |
| WATER INSOLUBLE | .......... | <0.05% |
| Pb | ........... | <0.01% |
| as | <0.0002% | <0.0001% |