Adipic acid (CH2)4(COOH)2

Structural Formula

Vander waal Structure

Interactive Image

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

Characteristics & uses:

Environmental concerns:

The production of adipic acid is linked to emissions of N2O a potent greenhouse gas and cause of stratospheric ozone depletion. Adipic acid, like most carboxylic acids, is a mild skin irritant. It is mildly toxic, with an LD50 of 3600mg/kg for oral ingestion by rats
Properties
Chemical formula (CH2)4(COOH)2
Molar mass 146.14 g·mol-1
Appearance White crystals
Odor Odorless
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
log P 0.08
Vapor pressure 0.0728 Pa (18.5 °C)
Acidity (pKa) 4.43, 5.41
Viscosity 4.54 cP (160 °C)
Source: Wikipedia