Sodium Bisulfite
CAS NO.：7631-90-5
Molecular Formula: NaHSO3
Structural Formula: 104.06
Structural formula: .png)
Appearance：White particles or crystalline powder.
Use：Medicinal excipients, Antioxidants.
Packing：25kg/Drum
Specification Standard：Pharmacopoeia of the people's Republic of China, 2020 Edition (Volume 4)
| Item | Index |
| Appearance | White particles or crystalline powder；A slight odor of sulfur dioxide. |
| Assay（SO2） | 61.5%～67.4% |
| Ferric salt | ≤10ppm |
| Sulfates | ≤4.0% |
| Heavy metals | ≤10ppm |
| Arsenic | ≤1ppm |