How much do you know about the properties and uses of adipic acid?

[Alias]Fatty acid, 1,4-butanedicarboxylic acid, butanedicarboxylic acid.

［Molecular Formula］C6H10O4

［Structural Formula］HOOC(CH2)4COOH

[Properties]Adipic acid is a white monoclinic prism with a smell of burning bones. Relative density 1.360 (25℃). Melting point 152℃, boiling point 337.5℃ (decomposition), flash point (open cup) 209.85℃, fire point 231.85℃, melt viscosity 4.54mPa·s (160℃). Slightly soluble in water and ether, very soluble in boiling water, soluble in methanol, ethanol, soluble in acetone, insoluble in benzene and petroleum ether; the aqueous solution is acidic, the pH value of 0.1% adipic acid aqueous solution is 3.2, and it is not hygroscopic. Can burn. Found naturally in rancid beets. It has the general properties of dibasic acids and can be esterified to form monoester or diester. When heated to 300°C, it is decarboxylated to form cyclopentanone.

[Use] Raw materials for organic synthesis, fine chemicals and the manufacture of polymer materials, used for the synthesis of diethyl adipate, hexane Esters such as dibutyl diphosphate and diisooctyl adipate are important raw materials for manufacturing nylon 66 and polyurethane foam. It is also a raw material for synthesizing medicines and spices. It is also used as a lubricant, pH regulator and in the manufacture of plasticizers, insecticides and adhesives. In the food industry, it is used as a sour agent, buffering agent and flavoring agent for beverages and fruit juices. Also used in the preparation of wine and processed cheese. Used in grease to improve grease quality. Used as a buffer to prevent browning of most fruits. Due to its low hygroscopicity, it can be used to make solid powdered juice.

[Brief preparation method]

① Cyclohexane is oxidized in the air to obtain a mixture of cyclohexanone and cyclohexanol, which is then oxidized with nitric acid to precipitate adipic acid crystals. The finished product is then refined;

②Produced by hydrolysis of hexamethylenediamine.

[Safety and Protection]Packed in woven bags lined with plastic bags. Net weight 25kg: Storage and transportation according to general chemical regulations.

This product has low toxicity, stable properties, and can be stored for a long time without becoming damp.