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What is baking soda? What's the name in the supermarket?
Sodium bicarbonate, chemical formula NaHCO? Commonly known as baking soda. White fine crystal, more insoluble in water than sodium carbonate. It is also an industrial chemical. Solids above 50℃ begin to decompose gradually to produce sodium carbonate, carbon dioxide and water, and completely decompose at 270℃.

Sodium bicarbonate is an acid salt formed by neutralization of strong alkali and weak acid, which is weakly alkaline when dissolved in water. This characteristic can make it a leavening agent in food production. Sodium carbonate will remain after the action of sodium bicarbonate, and excessive use will make the finished product have an alkaline taste.

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Unlike soda ash (sodium carbonate) and baking soda (sodium bicarbonate), baking soda is made from soda ash solution or crystal after absorbing carbon dioxide. So baking soda is also called edible alkali (powder) in some places Baking soda is solid, round, white and easily soluble in water.

Edible baking soda is mainly used as a generator of carbon dioxide in food, soft drinks and cold drinks, and also used in feed additives, medicine, chemistry, tanning, fire-fighting preparations, biological breeding, detergents, environmental desulfurization, sterilization and detoxification, bathing and health care industries.

Baidu encyclopedia-sodium bicarbonate