Adipic acid

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A white crystalline, solid that occurs naturally in beet juice. Adipic acid is prepared synthetically from cyclohexanol. It is primarily used in the production of Nylon and Polyurethane foams. Adipic acid is also used as a Plasticizer, Lubricant, and a food additive in baking powder (in place of Cream of tartar) and in beverages (in place of Citric acid). It is not Hygroscopic. Prior to 1940, adipic acid was also used for bronzing metals, preparing photographic paper, textile dyeing, and as a component in synthetic wax sizes mixed with Glycerol, Stearic acid, and Palmitic acid.

Synonyms and Related Terms

hexanedioic acid; 1,4-butanedicarboxylic acid; adipinic acid' Adipinsäure (Deut.); acide adipique (Fr.); acide 1,6-hexanedioïque (Fr.);



Chemical structure

Adipic acid.jpg


Fisher Scientific: SDS

Physical and Chemical Properties

Soluble in methanol, ethanol, ethyl acetate, acetone. Slightly soluble in water, cyclohexane. Insoluble in benzene, ligroin.

pH of a saturated solution is 2.7

Composition COOH(CH2)4COOH
CAS 124-04-9
Melting Point 152 C
Density 1.360 g/ml
Molecular Weight mol. wt. = 146.14
Boiling Point 337.5 C

Resources and Citations

  • G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: p. 17
  • Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
  • The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry # 161