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7757-83-7
bosschem
7757-83-7
| Sodium sulfite Basic information | |
| Product Name: | Sodium sulfite |
| CAS: | 7757-83-7 |
| MF: | Na2O3S |
| MW: | 126.04 |
| EINECS: | 231-821-4 |
| Mol File: | 7757-83-7.mol |
| Sodium sulfite Chemical Properties | |
| Melting point | 500 °C |
| density | 2.63 |
| refractive index | 1484 |
| storage temp. | Store at RT. |
| solubility | H2O: 1 M at 20 °C, clear, colorless |
| form | Solid |
| Specific Gravity | 2.633 |
| color | White to slightly yellow |
| Odor | Odorless |
| PH | 9.0-10.5 (25℃, 1M in H2O) |
| PH Range | 9.0 - 10.5 at 126 g/l at 25 °C |
| Water Solubility | 23 g/100 mL (20 ºC) |
| Sensitive | Hygroscopic |
| Merck | 148682 |
| Stability: | Stable. Incompatible with strong acids. Moisture and air sensitive. |
| Item | Quality Index | |
| Industry Grade | Food Grade | |
| Purity ( As Na2SO3) | 96.0% min | 98.0% min |
| Sodium sulphate ( SO4) | 2.0% max | 1.2% max |
| Chlorides ( As NaCL) | 0.5% max | 0.08% max |
| Arsenic ( As ) | - | 0.0002% max |
| Heavy metals ( As Pb ) | - | 0.0005% max |
| Iron (Fe) | 0.005% max | 0.003% max |
| Water insoluble | 0.05% max | 0.01% max |
| Sodium sulfite Basic information | |
| Product Name: | Sodium sulfite |
| CAS: | 7757-83-7 |
| MF: | Na2O3S |
| MW: | 126.04 |
| EINECS: | 231-821-4 |
| Mol File: | 7757-83-7.mol |
| Sodium sulfite Chemical Properties | |
| Melting point | 500 °C |
| density | 2.63 |
| refractive index | 1484 |
| storage temp. | Store at RT. |
| solubility | H2O: 1 M at 20 °C, clear, colorless |
| form | Solid |
| Specific Gravity | 2.633 |
| color | White to slightly yellow |
| Odor | Odorless |
| PH | 9.0-10.5 (25℃, 1M in H2O) |
| PH Range | 9.0 - 10.5 at 126 g/l at 25 °C |
| Water Solubility | 23 g/100 mL (20 ºC) |
| Sensitive | Hygroscopic |
| Merck | 148682 |
| Stability: | Stable. Incompatible with strong acids. Moisture and air sensitive. |
| Item | Quality Index | |
| Industry Grade | Food Grade | |
| Purity ( As Na2SO3) | 96.0% min | 98.0% min |
| Sodium sulphate ( SO4) | 2.0% max | 1.2% max |
| Chlorides ( As NaCL) | 0.5% max | 0.08% max |
| Arsenic ( As ) | - | 0.0002% max |
| Heavy metals ( As Pb ) | - | 0.0005% max |
| Iron (Fe) | 0.005% max | 0.003% max |
| Water insoluble | 0.05% max | 0.01% max |
