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

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

Extended information:

Uses of sodium bicarbonate

Used as analytical reagents, inorganic synthesis, pharmaceutical industry, treatment of acidemia and starter culture in the food industry, Generating agent of carbon dioxide in soda and cold drinks, and preservative of butter. It can be directly used as a raw material in the pharmaceutical industry, as a detergent for wool, as a foam fire extinguishing agent, as a bath agent, as an alkaline agent and as a leavening agent.

It is often formulated with ammonium bicarbonate as a leavening agent for biscuits and pastries. The addition amount in wheat flour is 20g/kg. It can be used with citric acid, tartaric acid, etc. to prepare a foaming agent for solid refreshing drinks (generating CO?). Because it is a harmless weak alkaline agent, adding about 0.1 to 0.2 when washing vegetables can stabilize the green color.

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

It has a mutton-removing effect on goat milk (dosage 10~20mg/kg). As an acidity regulator and chemical leavening agent, our country stipulates that it can be used in various foods that require the addition of leavening agents and should be used in appropriate amounts according to production needs.

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

It is also used as a detergent for wool and for soaking seeds in agriculture. One of the most widely used loosening agents in the food industry. It is used to produce biscuits, pastries, steamed buns, bread, etc. It is a carbon dioxide generator in soda drinks. It can be compounded with alum to form alkaline baking powder, and can also be compounded with soda ash for civilian use. Stone soda; also used as butter preservative.

Used in fire-fighting equipment to produce acid-base fire extinguishers and foam fire extinguishers. In the rubber industry, it is used in combination with alum and sodium bicarbonate pore-forming agents to produce uniform pores for rubber and sponge production. In the metallurgical industry, it is used as a flux for casting steel ingots. In the machinery industry, it is used as a molding aid for cast steel (sand foundry) sand molds.

In the printing and dyeing industry, it is used as a fixing agent for dyeing and printing, an acid-base buffering agent, and a post-processing agent for fabric dyeing and finishing. Adding baking soda to dyeing can prevent yarn tubes from developing stains. In the pharmaceutical industry, it is used as a raw material for antacids.

Baidu Encyclopedia-Sodium Bicarbonate