Customization: | Available |
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CAS No.: | 7757-83-7 |
Formula: | Na2o3s |
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Good quality Sodium sulfite for Food bleach 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 |
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 |
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 |
Heavy metals ( As Pb ) | - | 0.0005% max |
Iron (Fe) | 0.005% max | 0.003% max |
Water insoluble | 0.05% max | 0.01% max |