If it is splashed with strong alkali (NaOH or KOH) in the laboratory, besides applying a large amount of water (H2O), it should also be coated with boric acid solution.
To neutralize the residual strong base. This is one of the most basic and recent uses.
(If there is no boric acid solution and it is splashed with strong alkali, carbonic acid can be used in case of emergency, but boric acid is preferred because boric acid is also acid, which is weaker than carbonic acid in cola.) Prepare buffer. Various borate salts were prepared.
Insecticides for black beetles in cockroaches and carpets. It is used as a hemostatic agent and a preservative in medicine. Used as a pH adjuster, disinfectant, antibacterial preservative, etc.; used in the preparation of borate, borate, optical glass, paint, pigment, boric acid soap, leather finishing agent, printing and dyeing auxiliaries and pharmaceutical disinfection Agents, etc. Used in capacitor manufacturing and electronic component industry, high purity analytical reagents, medicinal disinfection and antiseptic preparation and processing of exposed photosensitive materials.
Used in glass, enamel, ceramics, medicine, metallurgy, leather, dyes, pesticides, fertilizers, textiles, etc.; used as chromatographic reagents, also used in the preparation of buffers; used in glass (optical glass, acid-resistant glass, resistant) Industrial use of glass fiber for hot glass and insulating materials can improve the heat resistance and transparency of glass products, improve mechanical strength, and shorten melting time.
In the enamel and ceramic industry, it is also one of the ingredients of glaze and pigment to enhance the gloss and fastness of enamel products. In the metallurgical industry, additives and cosolvents, especially boron steel, have high hardness and good rolling ductility and can replace nickel steel. Boric acid is antiseptic and can be used as a preservative, such as wood preservation.
It is used in the fields of metal welding, leather, photography, and the manufacture of dyes, heat-resistant fireproof fabrics, artificial gemstones, capacitors, and cosmetics. It can also be used as an insecticide and a catalyst. Boron-containing trace element fertilizers in agriculture have fertilizer effects on many crops, which can improve crop quality and increase yield. Boric acid is also one of the basic raw materials for the production of other borides. The boron compounds produced by it are widely used in national defense and other industrial sectors and research institutes. Used as a pH regulator, antibacterial preservative