Other Name: Sodium sulfite anhydrous; Sodium sulphite; anhydrous sodium sulfite; Sodium sulfite ,anhydrous
CAS No.: 7757-83-7
EINECS No.: 231-821-4
Molecular formula: Na2SO3
Item | Index | Result |
Color | White | White |
State | Crystalline powder | Crystalline powder |
Sodium sulfite (Na2SO3),W% | ≥96% | 96.8 |
Iron (Fe),W% | ≤0.003 | 0.001 |
Water insoluble substance,W% | ≤0.02 | 0.004 |
Free alkali (calculated by Na2CO3),W% | ≤0.10 | 0.02 |
Sulfate (calculated by Na2SO4),W% | ≤2.5 | 1.6 |
Chloride (calculated by NaCl),W% | ≤0.10 | 0.04 |