Sodium bicarbonate, with the molecular formula NaHCO₃, is an inorganic compound, white powder or fine crystal, odorless, salty, easily soluble in water, slightly soluble in ethanol, and the aqueous solution is slightly alkaline. It is easy to decompose when heated, and slowly decomposes in humid air to produce carbon dioxide. It begins to decompose at about 50°C and completely decomposes when heated to 270°C. When encountering acid, it decomposes strongly and produces carbon dioxide. Sodium bicarbonate is widely used in chemical industry, medicine, food, light industry, textile and other industrial fields as well as people's daily life, and occupies an important position in the national economy.
Sodium bicarbonate can be used as an analytical reagent and also in inorganic synthesis. It can be used to prepare sodium carbonate-sodium bicarbonate buffer solution. When adding a small amount of acid or alkali, it can keep the hydrogen ion concentration from changing significantly and keep the pH value of the system relatively stable.
Sodium bicarbonate can be used to produce acid-base fire extinguishers and foam fire extinguishers. In the rubber industry, sodium bicarbonate can be used in the production of rubber and sponges. In the metallurgical industry, sodium bicarbonate can be used as a flux for casting steel ingots. In the machinery industry, sodium bicarbonate can be used as a forming aid for cast steel (sand foundry) sand molds. In the printing and dyeing industry, sodium bicarbonate can be 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 the yarn tube from producing color flowers, and can also be used to wash wool. agent.
Sodium bicarbonate can be used for soaking seeds in agriculture, and can also make up for the lack of lysine content in feed. Dissolving sodium bicarbonate in a small amount of water or mixing it into concentrate to feed cattle (add in appropriate amounts) can promote the growth of cattle. It can also significantly increase the milk production of dairy cows.
