| Product name: | Sodium Dithionite |
| Molecular Formula: | Na2O4S2 |
| Molecular Structure: |  |
| Molecular Weight: | 174.107 |
| CAS No.: | 7775-14-6 |
Description
Sodium dithionite is a white sand crystal or light yellow powder chemical. It has a melting point of 300 ° C (decomposition) and an ignition temperature of 250 ° C. It is insoluble in ethanol and soluble in sodium hydroxide solution. It reacts strongly with water and burns.
Application
Sodium dithionite is widely used in the printing and dyeing industry, such as cotton fabric dyeing agent and silk wool fabric bleaching. Also used in medicine, mineral processing, and copperplate prints. Also used as a bleaching agent and the like in the paper industry. Food grade products are used as bleaches, preservatives and antioxidants.
Specification
| Appearance | White sand crystal or light yellow powder |
| Sodium Hydrosulphite | 90% min |
| Water insoluble | 0.1% max |
| Sodium thiosulfate: Na2S2O3 | 1.3% max |
| Sodium metabisulfite: Na2S2O5 | 5~7% |
| Sodium bisulfite: NaHSO3 | 0.5% max |
| Sodium carbonate: Na2CO3 | 0.6~2% max |
| Sodium formate: HCOONa | 0.5% max |
| Zn | 1PPM max |
| Fe | 10PPM max |
Packing
50kg / iron drum or as customer’s requirements.
Storage
Store in tight container, in a dry and cool place.
Minimum Order
1000kgs
