Basic Info.
Product Description
| Component | Industrial Grade | Food Grade | High Purity Grade |
| Appearance | White or yellowish crystalline powder | ||
| Assay(Na2S2O5 ) | 96.5%min | 97%min | 98%min |
| water insoluble matter | 0.05%max | 0.03%max | 0.02%max |
| Iron content(Fe) | 0.005%max | 0.003%max | 0.002%max |
| As content(As) | 0.0001%max | 0.0001%max | 0.0001%max |
| Pb | 0.0005%max | 0.0005%max | 0.0003%max |
Chemical industry
It is used for the production of insurance powder, sulfamethazine, analgin, caprolactam, etc., phenylpropane sulfone and benzaldehyde. The photographic industry is used as a fixative for the fixer. The perfume industry is used to produce vanillin. Used as a preservative for brewing industry, a rubber coagulant and a bleaching agent for cotton bleaching. Organic intermediates, dyes, and tanning are used as reducing agents for electroplating, wastewater treatment in oil fields, and as a mineralizer for mines.
industry
It is used in printing and dyeing, organic synthesis, printing, tanning, pharmaceutical and other departments; as a preservative, bleaching agent and loosening agent in food processing.
Used as a chemical reagent
(Printing and dyeing, photography, etc.), used as bleach mordant, reducing agent rubber coagulant, also used in organic synthetic pharmaceuticals and spices.
