Sodium bicarbonate (NaHCO? It is an inorganic salt, white crystalline powder, odorless, alkaline and soluble in water. Slow decomposition in humid air or hot air produces carbon dioxide, which is completely decomposed when heated to 270℃. In case of acid, it will decompose strongly to produce carbon dioxide.
Chemical properties:
Stable at room temperature and easy to decompose when heated. It decomposes rapidly above 50℃, completely loses carbon dioxide at 270℃, remains unchanged in dry air, and slowly decomposes in humid air.
It can react with acids and bases. React with acid to generate corresponding salt, water and carbon dioxide, and react with alkali to generate corresponding carbonate and water. In addition, it can react with some salts and double hydrolyze with aluminum chloride and aluminum chlorate to produce aluminum hydroxide, sodium salt and carbon dioxide.