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Sodium disulfite, also known as insurance powder, is an inorganic substance with the formula Na2S2O4 and is a white crystalline powder.
Product Name:Sodium Hydrosulfite
Other Name:Sodium Dithionite
Appearance:White powder
Molecular Formula:Na2S2O4
CAS No.: 7775-14-6
HS Code:2831101000
MOQ:1*20'FCL
Package: 50kg Iron drum or Customized package
Sodium Hydrosulfite
| INDEX | 90% | 88% | 85% |
| Na2S2O4 | ≥90% | ≥88% | ≥85% |
| Fe | ≤20ppm | ≤20ppm | ≤20ppm |
| Zinc(Zn) | ≤1ppm | ≤1ppm | ≤1ppm |
| Other heavy metal (as Pb) | ≤1ppm | ≤1ppm | ≤1ppm |
| Water Insolubles | ≤0.05% | ≤0.05% | ≤0.05% |
| Shelf Life(month) | 12 | 12 | 12 |
1.Widely used in printing and dyeing industry,such as cotton fabrics dyeing auxiliary, silk fabric bleaching.
2.Used as bleaching agent in paper industry.
3.Used as bleaching agent,antiseptic agent and antioxidant agent in food industry.
4.Used as bleaching agent for soap,oil esters,pulp in light industry.
5.Used for producing rongalite, sodium thiosulfate,thiourea,sulfur,benzoic acid, synthetic dyes, also used copperplate printing,analytical reagent in the chemical industry,etc.
6.Used as reducing agent in printing and dyeing industry.
50 kg Drum , 21.6MT/20'FCL .also be packed according to customer's needs.
Store closed containers in a cool, dry, well-ventilated area. Avoid exposure to direct sunlight.
