Glacial acetic acid

　　Main Uses

　　Industrial Field:

　　Organic Synthesis: It is a core raw material for preparing acetates (such as ethyl acetate, butyl acetate, used in solvents and fragrances), acetic anhydride (used in pharmaceuticals and dyes), and cellulose acetate (used in plastics and films).

　　Textile and Dyeing: Used as a dyeing auxiliary to adjust the pH of the dye bath, or for fabric treatment (such as wool degreasing).

　　Metal Processing: Used for rust removal (reacts with metal oxides) or as a pH regulator for electroplating solutions.

　　Rubber Industry: Used as a coagulant for natural rubber (destroys the stability of rubber latex, causing rubber to solidify).

　　Food Industry:

　　As a food additive (acidulant, number E260), used for seasoning (such as pickled products, canned goods), pH adjustment (extending shelf life), and inhibiting microbial growth (acidic environment inhibits bacterial reproduction).

　　Preparation of food-grade acetates (such as sodium acetate, used for seasoning and buffering agents).

　　Pharmaceuticals and Cosmetics:

　　Pharmaceutical Synthesis: Used as an intermediate for preparing drugs such as aspirin (acetylsalicylic acid) and Vitamin B (introducing acetyl groups via acetylation reactions).

　　Cosmetics: Diluted acetic acid (at low concentrations) is used in skincare products to adjust pH, or as an exfoliating ingredient (gently dissolving the stratum corneum).

　　Laboratory and Research:

　　Used as a weak acid reagent for acid-base titrations and buffer solution preparation (such as forming a CH₃COOH-CH₃COONa buffer pair with sodium acetate to maintain solution pH between 4-6).

　　Used as a solvent or acetylating agent in organic synthesis (providing acetyl groups).