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 |
