export soda ash

【Chemical Formula】 Na2CO3

【Molecular Weight】 105.99

【Common name】 block alkali, soda ash, soda, soda (Soda), I base (history, generally through Zhangjiakou and Gubeikou transit country, so has "mouth alkali-do."), No crystal water of the industrial name Light base, there is a name of crystal water of heavy industrial base.

【CAS No.】 497-19-8

【Appearance】 white powder, is a crystalline

【】 Astringent taste

【Relative density (water = 1)】 2.532

】【Melting point 851 ℃

【Category】 alkali weak acid salt ** NOTE ** (soda ash is not a base is the salt!)

【】 Stability, strong stability, but also decompose at high temperatures to produce sodium oxide and carbon dioxide. Long-term exposure to air can absorb moisture and carbon dioxide in the air to produce sodium bicarbonate, and form lumps. Hygroscopicity strong, it is easy to form a lump, do not decompose at high temperatures. Containing crystal water are three kinds of sodium carbonate: Na2CO3 • H2O, Na2CO3 • 7H2O and Na2CO3 • 10H2O.

【Solubility】 soluble in water, slightly soluble in ethanol, not soluble in alcohol.

Sodium carbonate soluble in water, is a weak base salt, soluble in water after the hydrolysis reaction, so that significant alkaline solution, there is a certain degree of corrosion, can be carried out in and reaction with acid to produce the corresponding salt, and release carbon dioxide