1, soda, namely SodiumBicarbonate, commonly known as "baking soda", "baking soda powder" and "Chongcao", is white and fine crystal, and its solubility in water is less than that of sodium carbonate.

2. Sodium bicarbonate is a kind of white alkaline powder which is easily soluble in water. After combining with water, it begins to act to release carbon dioxide CO2, which reacts faster in acidic liquids (such as fruit juice), and with the increase of ambient temperature, the effect of releasing gas is faster.

3. White powder or monoclinic crystalline powder, odorless, salty and soluble in water, but less soluble than sodium carbonate in water, insoluble in ethanol, and slightly alkaline in aqueous solution. It decomposes easily when heated. Slowly decompose in humid air.

4. Sodium bicarbonate can be directly used as raw material in pharmaceutical industry to treat hyperacidity.

5. It can be used in film production, leather tanning, mineral processing, smelting and metal heat treatment, as well as in fiber and rubber industries. At the same time, it is used as a detergent for wool and for agricultural seed soaking.