Specification Datasheet
| Product Name | Sodium Pyrosulfite | ||
| Appearance | White crystalline powder | ||
| Grade | Food Grade | Industrial Grade | |
| Purity (ω/%) | 96.5 | 95 | ＜95 |
| CAS No.: | 7681-57-4 | ||
| EINECS | 231-673-0 | ||
| Chemical Formula | Na2S2O5 | ||
| Molecular Weight | 190.107 | ||
| Density | 1.48 g/cm³ | ||
| Melting point | 150 ℃ | ||
Application
- In the chemical and pharmaceutical industries, it is used to produce sodium hydrosulfite, sulfadimidine, metamizole, and caprolactam, as well as for the purification of chloroform, diphenyl sulfone, and benzaldehyde.
- It serves as an ingredient in fixing agents for the photographic industry.
- It is used in the fragrance industry for the production of vanillin.
- It acts as a preservative in the brewing industry, a rubber coagulant, and a dechlorination agent for bleached cotton fabrics.
- It serves as a reducing agent for organic intermediates, dyes, and leather processing.
- It is used in wastewater treatment for the electroplating industry and oil fields, as well as an ore dressing agent in mining.
- Industrially, it is utilized in sectors such as textile printing and dyeing, organic synthesis, printing, leather processing, and pharmaceuticals.
- In food processing, it functions as a preservative, bleaching agent, and leavening agent.
Packaging
25KGS/BAG or 50KGS/BAG
StorageStore in a cool, dry, and well-ventilated warehouse. Keep away from sources of ignition and heat. Keep the container tightly sealed. Store separately from oxidizing agents, acids, and food-grade chemicals; do not store together. Avoid prolonged storage to prevent deterioration. The storage area should be equipped with suitable materials for containing spills. Protect from light and keep sealed.