Sodium sulfate
Synonyms: Sodium sulphate, Sodium lauryl sulfate
- Molecular Formula: Na2SO4
- CAS NO.: 7757-82-6
- EINECS No.: 231-820-9
Sodium sulfate technical data:
| Ⅰ | Ⅱ | Ⅲ | ||||
| Item | Premium | Grade A | Premium | Grade A | Premium | Grade A |
| Sodium sulfate (Na2SO4) mass fraction/% ≥ | 99.3 | 99 | 98 | 97 | 95 | 92 |
| Water insoluble matter mass fraction% ≤ | 0.05 | 0.05 | 0.1 | 0.2 | – | – |
| Calcium magnesium (calculated as Mg) content mass fraction% ≤ | 0.1 | 0.15 | 0.3 | 0.4 | 0.6 | – |
| Mass fraction of oxide (calculated as Cl)% ≤ | 0.12 | 0.35 | 0.7 | 0.9 | 2 | – |
| Iron (calculated as Fe) mass fraction% ≤ | 0.002 | 0.002 | 0.01 | 0.04 | – | – |
| Moisture mass fraction% ≤ | 0.1 | 0.2 | 0.5 | 1 | 1.5 | – |
| Whiteness (R457)% ≥ | 85 | 82 | 82 | – | – | – |
Application:
1. The chemical industry uses it to manufacture sodium sulfide, sodium silicate, water glass, and other chemical products.
2. Steaming and cooking agents used in the paper industry to produce kraft pulp.
3. Glass industry is used as a substitute for soda ash as a solubilizer.
4. Used in the textile industry to prepare spinning coagulants for vinylon.
5. Used in non-ferrous metal metallurgy, leather and other fields.