How to write the chemical formula of sodium bicarbonate?

Sodium bicarbonate, chemical formula NaHCO? Commonly known as baking soda.

Carbonate ion shows valence -2, sodium ion+1, hydrogen ion+1, so the chemical formula should be NaHCO? . Sodium bicarbonate can be directly used as raw material in pharmaceutical industry to treat hyperacidity. It can also be used in film production, tanning, mineral processing, smelting, metal heat treatment and fiber and rubber industries.

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The use of sodium bicarbonate

Used as analytical reagent, starter in inorganic synthesis, pharmaceutical industry, acidosis treatment and food industry, generator of carbon dioxide in soda and cold drinks, and preservative in butter. It can be directly used as raw material of pharmaceutical industry, used as wool detergent, foam extinguishing agent, bathing agent, alkaline agent and filler.

Often used with ammonium bicarbonate as a leavening agent for biscuits and cakes. The addition amount in wheat flour is 20g/kg. Can be mixed with citric acid, tartaric acid, etc. Preparation of foaming agent for solid cold drinks (producing co? )。 Because it is a harmless weak alkaline reagent, adding about 0. 1% ~ 0.2% during vegetable washing can make the green color stable.

When used alone, it is strongly alkaline due to thermal decomposition. When used in bread, it turns yellow and destroys vitamins in wheat. It is best to use it with acidic substances such as calcium hydrogen phosphate. It can also be used for blanching and removing astringency. Because it can increase the pH value, it can improve the water retention capacity of protein, promote the softening of food tissues and cells, and promote the dissolution of astringent components.

It can remove the smell of goat milk (dosage 10 ~ 20 mg/kg). As acidity regulator and chemical leavening agent, it can be used in various foods that need leavening agent, and can be used in proper amount according to production needs.

Sodium bicarbonate can be directly used as raw material in pharmaceutical industry to treat hyperacidity. It can also be used in film production, tanning, mineral processing, smelting, metal heat treatment and fiber and rubber industries.

At the same time, it is used as a detergent for soaking wool and agricultural seeds. One of the most widely used loosening agents in food industry is used to produce biscuits, cakes, steamed bread, bread and so on. , is the producer of carbon dioxide in soft drinks; It can be compounded with alum to form alkaline baking powder, and can also be compounded with soda ash to form civil caustic soda; It can also be used as a butter preservative.

Fire fighting equipment is used to produce acid-base fire extinguishers and foam extinguisher. The rubber industry uses it in combination with alum and sodium bicarbonate pore-forming agent to play the role of uniform pore-forming and is used in the production of rubber and sponge. Metallurgical industry is used as flux for casting steel ingots. The machinery industry is used as a molding aid for sand molds of cast steel (sand casting).

Printing and dyeing industry is used as fixing agent, acid-base buffer and post-treatment agent for fabric dyeing and finishing. Adding baking soda during dyeing can prevent the yarn tube from producing colored flowers. The pharmaceutical industry is used as the raw material of acid-making agent.

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