| Customization: | Available |
|---|---|
| CAS No.: | 7757-83-7 |
| Formula: | Na2o3s |
|
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Sodium sulfite with low price CAS 7757-83-7
| Sodium sulfite Basic information | |
| Product Name: | Sodium sulfite |
| CAS: | 7757-83-7 |
| MF: | Na2O3S |
| MW: | 126.04 |
| EINECS: | 231-821-4 |
| Sodium sulfite Chemical Properties | |
| Melting point | 500 °C |
| density | 2.63 |
| refractive index | 1,484 |
| storage temp. | Store at +5°C to +30°C. |
| solubility | H2O: 1 M at 20 °C, clear, colorless |
| form | Solid |
| color | White to slightly yellow |
| Specific Gravity | 2.633 |
| PH Range | 9.0 - 10.5 at 126 g/l at 25 °C |
| Odor | Odorless |
| PH | 9.0-10.5 (25ºC, 1M in H2O) |
| Water Solubility | 23 g/100 mL (20 ºC) |
| Sensitive | Hygroscopic |
| Merck | 148,682 |
| Stability: | Stable. Incompatible with strong acids. Moisture and air sensitive. |
| CAS DataBase Reference | 7757-83-7(CAS DataBase Reference) |
| NIST Chemistry Reference | sodium sulfite(7757-83-7) |
| EPA Substance Registry System | Sodium sulfite (7757-83-7) |
COA
| Item | Specification | |
| industrial-grade | Food grade | |
| Purity (in Na2SO3) | ≥96.0% | ≥98.0% |
| ( SO4) | ≤2.5% | ≤1.5% |
| NaCL | ≤0.5% | ≤0.1% |
| ( As ) | - | ≤0.0002% |
| Pb | - | ≤0.0005% |
| (Fe) | ≤0.005% | ≤0.002% |
| Water insoluble substance | ≤0.05% | ≤0.02% |
Widely used in bleaching, glass, paper making, tanning, metal smelting, surface treatment and filler industries.
It is aslo Used in chemical industry as material of manufaturing sodium sulphide,sodium silicate and other
chemical products.
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