Chemical formula of sodium carbonate Na2CO3, generic soda, also known as soda,
alkali dust, is an important basic chemical raw materials.
Properties and advantages:
Soda ash, white solid, usually crystalline powder or fine taste astringent,
in the air easily weathered. Relative density (25 degrees) 2.532, melting point
851 degrees. Specific heat capacity of 1.042J / (g  egrees) (20 degrees).
Soluble in water, its solubility maximum in 35.4 degrees, the water soluble
49.7g per 100g of sodium carbonate (0 degrees when 7.0g, 100 degrees to
45.5g).
White crystalline powder or small pieces, astringent taste. Slightly soluble in
ethanol, insoluble in alcohol. The aqueous alkaline hydrolysis, has some
corrosion, and with the acid in the reaction. High temperature decomposition. Long-term exposure to air in the air can absorb moisture and carbon dioxide
generated in sodium bicarbonate and form lumps.
Used:
In the industrial soda ash is mainly light industry, building materials, chemical
industry; followed by metallurgical, textile, petroleum, defense, pharmaceutical and other industries.