| CAS No.: | 497-19-8 |
|---|---|
| Formula: | CH2o3.2na |
| EINECS: | 207-838-8 |
| Type: | Pharmaceutical Intermediates |
| Appearance: | Powder |
| Colour: | White |
| Samples: |
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| Customization: |
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Product Name
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Sodium carbonate |
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Category
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Plant Extracts
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Analysis
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HPLC
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Storage
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Keep in cool and dry place, well-closed, away from moisture or direct sunlight.
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Sodium carbonate chemical formula is Na2CO3, common name soda soda alkali ash washing alkali, under normal circumstances as a white powder, a strong electrolyte density of 2.532g/cm3, melting point is 851 C, easily soluble in water, with the commonness of salt, is a kind of weak acid, slightly soluble in anhydrous ethanol, insoluble in propyl alcohol, soluble in water after hydrolysis reaction, make the solution alkaline, has a certain corrosive, can be neutralized with acid, generate the corresponding salt and release carbon dioxide decomposition at high temperature, sodium oxide and carbon dioxide Long-term exposure to the air can absorb moisture and carbon dioxide in the air, generate sodium bicarbonate, and form a hard block is very hygroscopic, easy to form a hard block, and does not decompose at high temperature Sodium carbonate and water generate Na2CO3·10H2O,Na2CO3·7H2O and Na2CO3·H2O three kinds of hydrate, among which Na2CO3·10H2O is the most stable, and the solubility heat of water is very small, which is widely used in the photographic industry, its trade name is carbon oxygen Na2CO3·10H2O is also known as crystalline alkali, which is easily weathered in dry air. In the past, crystalline alkali was often used for household washing and wool washing, so it is also known as washing alkali. In the past, Chinese folk used to use a block alkali that can both wash and raise dough, which was made by mixing soda ash with a lot of water (plus some baking soda (NaHCO3), and its water content was more than 50% Sodium carbonate soluble in water is endothermic reaction, easy weathering in the air Na2CO3·7H2O unstable, only in the range of 32.5~36 to precipitate sodium carbonate from sodium carbonate saturated solution sodium carbonate is a weak acid strong alkali salt (soda ash is a salt, not a base, but the solution is strongly alkaline) with chemical methods of Na2CO3 than tronine pure, people therefore called it Soda ash.
Specification:
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DENSE |
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APPEARANCE |
white odorless, granular | |
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TOTAL BASE CONTENT |
99.2% min (as Na2CO3 on Dry Base) |
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SODIUM OXIDE |
58.1% min (as Na2O on Dry Base) |
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| SODIUM CHLORIDE |
0.05% max (as NaCl on Dry Base) |
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| SODIUM SULFATE |
0.15% max (as Na2SO4 on Dry Base) |
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INSOLUBLES IN WATER |
0.1% max |
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| BULK DENSITY | 800 - 1100kg/m3 | |
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SIEVE ANALYSIS |
< 0.065mm :2.0% max < 0.125 mm: 5.0% max < 0.25 mm: 60.0% max < 0.5 mm: 60.0% min < 1.0 mm: 95.0% min |
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LIGHT |
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APPEARANCE |
white odorless, granular | |
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TOTAL BASE CONTENT |
99.2% min (as Na2CO3 on Dry Base) |
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SODIUM OXIDE |
58.1% min (as Na2O on Dry Base) |
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| SODIUM CHLORIDE |
0.05% max (as NaCl on Dry Base) |
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| SODIUM SULFATE |
0.15% max (as Na2SO4 on Dry Base) |
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INSOLUBLES IN WATER |
0.1% max |
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| BULK DENSITY | 400-700 kg/m3 | |
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SIEVE ANALYSIS |
0.125 - 0.250 mm : 20 - 35% 0.065 - 0.125 mm : 20 - 30% < 0.065 mm : 20 - 35% |
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