Laboratory use

Sodium bicarbonate can be used as an analytical reagent and is also used in inorganic synthesis. It can be used to prepare sodium carbonate-sodium bicarbonate buffer solution. When a small amount of acid or alkali is added, the hydrogen ion concentration will not change significantly, and the pH value of the system can be kept relatively stable.

Industrial Uses

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 sponge. In the metallurgical industry, sodium bicarbonate can be used as a flux for casting steel ingots. In the mechanical industry, sodium bicarbonate can be used as a molding aid for cast steel (sand casting) sand molds. In the printing and dyeing industry, sodium bicarbonate can be used as a dye fixing agent for dyeing and printing, an acid-base buffer, and a post-treatment agent for fabric dyeing and finishing; adding baking soda to dyeing can prevent the yarn tube from producing color spots, and it can also be used as a wool washing agent. dose.

Food processing applications

In food processing, sodium bicarbonate is the most widely used leavening agent, used in the production of biscuits, bread, etc. However, sodium bicarbonate will remain after the action. Excessive use will make the food too alkaline and cause the flavor to deteriorate. Yellowish brown in color. It is a generator of carbon dioxide in carbonated beverages; it can be combined with alum to form alkaline baking powder, and it can also be combined with soda ash to form civilian soda ash; it can also be used as a butter preservative. It can be used as a color preservative for fruits and vegetables in vegetable processing. Adding about 0.1% to 0.2% sodium bicarbonate when washing fruits and vegetables can stabilize the green color. When sodium bicarbonate is used as a fruit and vegetable processing agent, it can increase the pH value of fruits and vegetables by boiling and blanching them, improve the water holding capacity of protein, promote the softening of food tissue cells, and dissolve the astringent components. In addition, it has the effect of removing the smell of goat milk, and the usage amount is 0.001%~0.002%.

Agricultural and animal Husbandry use

Sodium bicarbonate can be used for seed soaking in agriculture, and can also make up for the lack of lysine in feed. Dissolving sodium bicarbonate in a small amount of water or mixing it into concentrate feed to feed cattle (adding an appropriate amount) can promote the growth of cattle. It can also significantly increase the milk production of dairy cows.

Medical Uses

Sodium bicarbonate can be used as a pharmaceutical raw material to treat hyperacidity and metabolic acidosis, and can also alkalize urine to prevent uric acid kidney stones. It can also reduce the renal toxicity of sulfonamides, prevent hemoglobin from depositing in the renal tubules during acute hemolysis, and treat symptoms caused by excessive gastric acid. Intravenous infusion has nonspecific effects on drug poisoning such as barbiturates, salicylates, and methanol. therapeutic effect. However, it is contraindicated for gastric lavage in case of ingestion of strong acid poisoning. In case of large-scale injection, renal insufficiency or long-term use, arrhythmia, muscle cramps, pain, abnormal fatigue and weakness, slow breathing, bad breath, frequent urination, urgent urination, Persistent headache, loss of appetite, nausea, vomiting, etc.