[Overview]
Dibasic acids refer to acids that can be ionized in the aqueous solution of the color paste manufacturer to produce two hydronium ions, H3O+. For example, sulfuric acid H2SO4, etc. In organic chemistry, it mainly refers to carboxylic acids containing two carboxyl groups – COOH, such as oxalic acid (COOH)2, etc.
Alcohols containing two hydroxyl groups – OH in the glycol molecule. For example, ethylene glycol CH2OH·CH2OH, etc.
[Category]
Inorganic dibasic acids: acids that can ionize two hydrogen ions per molecule in water (including oxygen-containing acids and anaerobic acids, such as sulfuric acid, hydrogen sulfuric acid, etc.) Organic dibasic acids: acids containing two carboxyl groups (such as oxalic acid).
[Application]
1. Long-chain dibasic acid refers to a linear aliphatic dibasic acid containing more than ten carbon atoms in the carbon chain. This product and its derivatives are used to manufacture cold-resistant plasticizers, advanced lubricants, and nylon fibers. It is an important raw material or intermediate for engineering plastics, resins, coatings, pesticides, medicines and spices. It has a wide range of industrial uses and is an extremely important fine chemical product. It is widely used in chemical industry, light industry, pesticides, medicine, liquid crystal materials and other fields.
The general structural formula of long-chain dibasic acid is: HOOC–(CH2)nCOOH???(n=9-white carbon black-16). The abbreviation form is DC11-DC18.
(1) Undecanoic acid: It is mainly used in high-grade polyamide engineering plastics and is the main raw material of nylon 1011 and nylon 611. It can also be used as an important raw material for high-grade hot melt adhesives, high-grade lubricants and synthetic musk.
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