Customization: | Available |
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CAS No.: | 144-55-8 |
Formula: | Nahco3 |
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Sodium Bicarbonate ( sodium hydrogen carbonate)
Item | Limit |
Characters | Appearance: white or almost white, crystalline powder. |
Solubility: soluble in water, practically insoluble in ethanol (96 per cent) When heated in the dry state or in solution , it gradually changes into sodium carbonate. |
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Identification |
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Appearance of solution | Solution S is clear and colourless. |
Carbonates | The pH of freshly prepared solution S is not greater than 8.6. |
Chlorides | Not more than 150ppm. |
Sulfates | Not more than 150ppm. |
Ammonium | Not more than 20ppm. |
Calcium | Not more than 100ppm. |
Iron | Not more than 20ppm. |
Assay | 99.0 per cent to 101.0 per cent . |