Sodium Carbonate BP
Sodium carbonate also known as washing soda, soda ash and soda crystals is the inorganic compound with the formula Na2CO3. Anhydrous sodium carbonate, also known as calcined soda, is formed by heating the hydrates.
Sodium carbonate is a food additive (E500) used as an acidity regulator, anticaking agent, raising agent, and stabilizer. Sodium carbonate is used in toothpastes, where it acts as a foaming agent and an abrasive, and to temporarily increase mouth pH. Also used in the manufacturing of soaps and detergents.
Product Name: Sodium Carbonate
Molecular Formula: Na2CO3
Molecular Weight: 106.0 g/mol
CAS No.: 497-19-8
|Characters||It occurs as a white or almost white, slightly granular powder, hygroscopic|
(a)Dissolve 1gm in water and dilute to 10ml. The solution is strongly alkaline.
(b)It gives the reaction of carbonates
(c)It gives the reaction of sodium
(d) Loss on drying
|Solubility||Freely soluble in water, practically insoluble in ethanol (96%)|
|Appearance of solution||The solution is clear and not more intensely colored than the reference solution Y6.|
|Alkali hydroxides and bicarbonates||Specified Test. The solution remains clear.|
|Chlorides||Not more than 125 ppm|
|Sulphates||Not more than 250 ppm|
|Arsenic||Not more than 5 ppm|
|Iron||Not more than 50 ppm|
|Loss on drying||Not more than 1.0%|
|Heavy metals||Not more than 50 ppm|
|Assay||Not less than 99.5% and not more than 100.5%
Shelf life, Storage and Packing
It should be stored in a segregated area in a cool and ventilated place away from combustible materials. Keep in a tightly closed container, sealed until ready for use. It is packed in 25kg or 50kg HDPE bags or drums as required.
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