Chemical formula: Na₂S₂O₄
Chemical formula: Na₂S₂O₄
Chemical formula: Na₂S₂O₄
Application
It is a excellent bleaching agent used for bleaching cotton fabrics, silk fabrics, woolen fabrics, and so on.
It can effectively remove natural pigments and dye residues from fabrics, making fabrics bright white.
It can be used to remove color from dyed fabric, facilitating re-dyeing or correcting color deviations. It also removes residual oxidants and repairs color spots
Type
Sodium Hydrosulfite 88%，90%
Specification
| Items | Industrial Grade | ||
| 85% | 88% | 90% | |
| Appearance | White crystalline powder | ||
| odor | Odorless or with a slight odor of sulfur dioxide | ||
| Na2S2O4 （%） | ≥85 | ≥88 | ≥90 |
| Na2CO3 (%) | 0.9-5.0 | 0.9-5.0 | 0.9-5.0 |
| Water Insolubles
（%） |
≤0.05 | ≤0.05 | ≤0.05 |
| Shelf life (Months) | 12 | 12 | 12 |
