Sodium Sulfite Tech Grade
General Usage:
Sodium Sulfite Tech Grade
Product Description:
CAS No:7757-83-7
EINECS No.: 231-821-4
Molecular formula: Na2SO3
Purity: 90%~99%min
Appearance: White powder
Production Capacity: 50,000MT per year
H.S. Code: 28321000
Port: Yueyang, China
Payment Terms: L/C, T/T, D/P
EINECS No.: 231-821-4
Molecular formula: Na2SO3
Purity: 90%~99%min
Appearance: White powder
Production Capacity: 50,000MT per year
H.S. Code: 28321000
Port: Yueyang, China
Payment Terms: L/C, T/T, D/P
Specification of Anhydrous Sodium Sulfite
| No. | Item | Super Grade | First Grade | Qualified Grade |
| 1 | Anhydrous Sodium Sulfite (Na2SO3) w/%≥ | 97 | 96 | 93 |
| 2 | Fe w/% ≤ | ≤ 0.003 | ≤ 0.005 | ≤ 0.02 |
| 3 | Insoluble matter in nitric acid w/% ≤ | Pass test | ---- | |
| 4 | Free Alkali(Na2CO3) w/% ≤ | ≤0.02 | ≤0.03 | ≤0.05 |
| 5 | Na2SO4 w/% ≤ | ≤ 2.5 | ---- | ---- |
| 6 | NaCl w/% ≤ | ≤0.1 | ---- | ---- |
Usage of Sodium Sulfite Food Grade:
1. Used as bleaching agent
2. Used as preservative agent
3. Used as bulking agent, Used as
4. Used as antioxidant
5. Used as pharmacyeutical synthesis
1. Used as bleaching agent
2. Used as preservative agent
3. Used as bulking agent, Used as
4. Used as antioxidant
5. Used as pharmacyeutical synthesis