CAS NO.:7757-83-7
Molecular Formula:Na2SO3
Structural Formula:
Molecular Weight:126.04
Appearance:White crystal or 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 crystal or powder |
Assay |
97.0%~100.5% |
Ferric salt |
≤10ppm |
Zinc |
≤25ppm |
Heavy metals |
≤10ppm |
Selenium |
≤10ppm |
Arsenic |
≤4ppm |