| Name: Sodium Sulfite anhydrous |
| Grade: Laboratory Analytical Reagent |
| Application: Synthesis, Redox |
| Synonyms: Hypo clear (photography), E221 |
| CAS Number: 7757-83-7 EC Number: 231-821-4 Molar Mass: 126.04 g/mol Chemical Formula: Na2SO3 |
| Download: Datasheet | CoA | SDS |
| Chemical formula: Na2SO4 | Molar Mass: 142.04 g/mol |
| Appearance: White powder | Density: 2.66 g/cm3 (20 °C) |
| Solub. in water: 200 g/l (20 °C) | Melting point: 888 °C |
| Boiling point: 1429 °C | Flash point: N/A |
| Storage temp.: Below +30 °C | Cautions: Irritant |
| R: N/A | S: N/A |
| HS-No.: 28331100 | EC-Index-No.: 231-820-9 |
| Assay | ≥ | 98 | % |
| Identification (Sodium) | Conforms | ||
| Identification (sulfate) | Conforms | ||
| Chloride | ≤ | 0.2 | |
| Acidity or alkalinity | ≤ | 0.02 | meq/g |
| Solubility | Conforms | ||
| Loss on drying | ≤ | 1.0 | % |
| Ordering code | 1 kg | 2.5 kg | 5 kg | 10 kg | 20 kg |
| P.E. | 416.06.01000.02 | 416.06.05000.02 | 416.06.10000.02 | ||
| Glass |
| Hazard Symbol |
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