Benzoic acid, also known as benzoic acid, is an aromatic dicarboxylic acid organic compound with the chemical formula CHHOO₂ and a relative molecular weight of 122.12.Benzoic acid has no odor or slightly benzaldehyde odor and a slightly bitter taste. The substance is white needle-like crystals or scaly crystalline powders. Common forms include needle-like crystals and scaly powders.Slightly soluble in cold water, easily soluble in hot water, ethanol, ether, acetone and other organic solvents, the aqueous solution is weakly acidic, the pH value is about 2.5-3.5, and it has certain anticorrosive and bactericidal properties.It is stable in the air, melts when heated to 122.4℃, sublimates above 150℃, and decomposes at 250℃ to produce benzene and carbon dioxide. It needs to be sealed and stored in a cool and dry place, away from high temperature, open flame and alkaline substances to prevent sublimation and deterioration.It is used in industrial production in the fields of food, medicine, chemical industry, printing and dyeing, cosmetics, etc., as a preservative, fungicide, and intermediate in organic synthesis. It is also used in food preservation, drug synthesis, dye manufacturing and other processes.Its excellent anticorrosive and bactericidal properties can effectively extend the shelf life of products in the fields of food and cosmetics, and can be used as a core intermediate in the chemical industry to synthesize a variety of products, which are widely used.

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Application Description

1. It is used as a core preservative and fungicide in the food industry. It is used in the processing of beverages, fruit juices, jams, confectionery, dairy products, canned food, condiments and other foods. It can inhibit the growth and reproduction of microorganisms such as mold, yeast, bacteria, etc., extend the shelf life of food, and is harmless to the human body. It strictly complies with food-grade safety standards and is one of the natural preservatives commonly used in the food industry.
2. The pharmaceutical industry is used as pharmaceutical raw materials and preservatives for the production of antibiotics, antipyretic analgesics, topical ointments and other pharmaceutical products. It can be used as an intermediate in drug synthesis. At the same time, it can be used for anticorrosive treatment of pharmaceutical preparations to prevent moisture absorption and mildew of drugs, improve drug stability, and meet the high standards of the pharmaceutical industry.
3. Used as an intermediate in organic synthesis in the chemical industry, it is used in the production of benzoates, sodium benzoate, dyes, resins, fragrances and other chemical products. It can also be used as a solvent and fungicide. It is widely used in chemical synthesis, coating manufacturing, plastic processing and other scenes. It is an important basic aromatic organic chemical raw material.
4. It is used as a preservative and fungicide in the cosmetics industry. It is used in the production of cosmetics such as skin care products, shampoos, shower gels, lipsticks, etc. It can inhibit the growth of microorganisms in cosmetics, prevent product deterioration, and extend the shelf life of cosmetics. At the same time, it is gentle and does not irritate the skin, and fits the acid-base environment of human skin.
5. It is used as a dyeing aid and color fixing agent in the printing and dyeing industry. It is used in the dyeing process of cotton, linen, chemical fiber and other textiles. It can adjust the acidity of the dye solution, promote uniform coloring of dyes, and improve dyeing fastness. At the same time, it can be used for neutralization after bleaching of textiles to improve the feel and color of fabrics.
6. It is used as a preservative and tanning agent in the leather industry. It is used in the leather processing process to prevent mildew and decay of leather and extend the shelf life of leather. At the same time, it can assist leather tanning, improve leather softness, toughness and wear resistance, and improve leather quality.
7. It is used as a preservative and additive in the light industry, and is used in the production of papermaking, detergents, fragrances and other products. It is used as a paper preservative in the papermaking industry to prevent paper mildew; it is used as a lotion in the detergent industry to enhance decontamination capacity; it is used in the fragrance industry to synthesize flavors and enhance the stability of the fragrance aroma.
8. It is used as a chemical reagent in the laboratory, as a preservative, acidity regulator, and intermediate in organic synthesis. It is used in experimental operations such as chemical analysis, organic synthesis, and sample preservation. It can also be used to calibrate pH meters and prepare standard buffer solutions to assist in the smooth progress of various experiments.