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Soda ash factory is introduced the physical and chemical properties of soda ash for you

by:Yixin     2020-03-25
Scientific name, soda ash, sodium carbonate, the common name for soda, stone to alkali, alkali washing, chemical formula Na? 有限公司? , belong to salt, including ten water of crystallization of sodium carbonate as colorless crystals, crystal water is not stable, easy to weathering, into white powder Na2CO3, for strong electrolyte, with salt connectivity and thermal stability, soluble in water, its aqueous solution is alkaline. Main ingredients: single product melting point ( ℃) : 851 relative density ( Water = 1) : 2. 53 solubility: soluble in water, insoluble in ethanol, ethyl ether, etc. Main application: it is one of important chemical raw materials, used in chemical, detergent, detergent, also used in photography and pharmaceuticals. Other physical and chemical properties: aqueous solution of sodium carbonate in strong alkaline ( pH = 11。 6) Has certain corrosion resistance, and can double decomposition reaction with acid, calcium can also with some salt, barium salt double decomposition reaction. Containing water of crystallization of sodium carbonate has 3 kinds: Na2CO3 · H2O, Na2CO3 · 7 H2O and Na2CO3 10 H2O. Strong stability, but also can be decomposed under high temperature, produce sodium oxide and carbon dioxide. Long-term exposure to the air can absorb moisture and carbon dioxide in the air, produce sodium bicarbonate, and form a lump. The crystallization of sodium carbonate hydrate stone alkaline ( Na2CO3·10H2O) Easy weathering in dry air.
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