16 Adipic acid chemical formula

Adipic acid, also known as "fatty acid", has the chemical formula
. Chemical formula HOOC (CH2) 4COOH. The molecular weight is 146.14. Exists in beet juice. White crystalline or crystalline powder, odorless, with a sour taste and a gentle acidity. Melting point of 152 ℃, boiling point of 330.5 ℃, self ignition temperature of 420 ℃, capable of sublimation, non hygroscopic, and quite stable. Extremely soluble in boiling water, soluble in methanol and ethanol, soluble in acetone, slightly soluble in water and cyclohexane, slightly soluble in ether, insoluble in benzene and petroleum ether. The aqueous solution is acidic with a pH of 2.7 (saturated solution); PH=3.2 (0.1% aqueous solution). The dissociation constants K1=3.90 × 10-
5, K2=5.29 × 10-6. The chemical properties of carboxylic acids, such as esterification, are characterized by heating decarboxylation to produce cyclopentanone. It is industrially produced from phenol, cyclohexane, or tetrahydrofuran as raw materials. Adipic acid is an important raw material for the synthesis of fiber nylon 66 (polyhexamethylenediamine). It can also be used to manufacture plasticizers, synthetic lubricants, and food additives.