IUPAC name: Hexanedioic acid.
Other names :Adipic acid, Hexane-1,6-dicarboxylic acid, Hexane-1,6-dioic acid.
Adipic acid is the organic compound with the formula (CH2)4(COOH)2. From an industrial perspective, it is the most important dicarboxylic. Adipic acid is a dibasic acid The pKa values for their successive deprotonations are 4.41 and 5.41. With the carboxylate groups separated by four methylene groups, adipic acid is suited for intramolecular condensation reactions. Upon treatment with barium hydroxide at elevated temperatures, it undergoes ketonization to give cyclopentanone
|Molar mass||146.14 g·mol-1|
|Melting point||152.1 °C (305.8 °F; 425.2 K)|
|Boiling point||337.5 °C (639.5 °F; 610.6 K)|
|Solubility in water|| 14 g/L (10 °C)
24 g/L (25 °C)
1600 g/L (100 °C)
|Solubility||Very soluble in methanol, ethanol soluble in acetone slightly soluble in cyclohexane negligible in benzene, petroleum ether insoluble in acetic acid|
|Vapor pressure||0.0728 Pa (18.5 °C)|
|Acidity (pKa)||4.43, 5.41|
|Viscosity||4.54 cP (160 °C)|