Sodium carbonate, is an inorganic compound, Molecular formula is Na2CO3, Molecular weight105.99, also known as soda, but the classification belongs to salt, does not belong to the base. Also known as soda or alkali ash in international trade. It is an important inorganic chemical raw material, mainly used in the production of plate glass, glassware and ceramic glaze. It is also widely used in household washing, acid neutralization and food processing.
English name: Sodium Carbonate
Alias: Sodium carbonate anhydrous; Sodium carbonate solution; soda ash; disodium carbonate; Sodium carbonate-12C, 13C-depleted; calcined soda; Carbonic acid disodium salt; Sodium carbonate,high-purity; Sodium carbonate,dense; SODA ASH LIGHT; Anhydrous Sodium carbonate; carbonic acid, sodium salt; Carbonic acid, sodium salt; Caswell No. 752; Soda (VAN); soda ash dense; Soda
Chemical formula: Na2CO3
Molecular weight: 105.99
Boiling point: 1600 ℃
CAS: 497-19-8
EINECS: 231-861-5
Density: 2.532 g/cm3
Melting point: 851 ℃
Decomposition temperature: 1744℃
Safety description: S36/3; -S26; S22; S36; S39
Hazard symbol: R36
Hazard description: Xi
UN dangerous goods number: 3082
Solubility: Sodium carbonate is easily soluble in water and glycerin. At 20℃, 20 grams of sodium carbonate could be dissolved per 100 grams of water, and at 35.4℃, the solubility was the highest, and 49.7 grams of sodium carbonate could be dissolved in 100 grams of water. It was slightly soluble in anhydrous ethanol, but difficult to dissolve in propanol.
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Item
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Index
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category 1
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category 2
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category 3
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total alkali content (%)
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99
|
98
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96
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chloride (%)
|
0.5
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0.9
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1.2
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water insolubles (%)
|
0.04
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0.1
|
0.15
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ferrum (%)
|
0.004
|
0.006
|
0.01
|
|
sulfate (%)
|
0.03
|
0.08
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-
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|
loss on drying (%)
|
0.8
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1
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1.3
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