| 释义 |
Definition of adipic acid in English: adipic acidnounəˈdɪpɪkəˌdipik ˈasid mass nounChemistry A crystalline fatty acid obtained from natural fats and used especially in the manufacture of nylon. Alternative name: hexanedioic acid; chemical formula: HOOC(CH₂)₄COOH Example sentencesExamples - W. H. Carothers of E. I. DuPont de Nemours first produced nylon in 1931 from hexamethylenediamine and adipic acid, a six-carbon amine and a six-carbon acid.
- For example, polyesters are created by the reaction of a dihydric alcohol, such as ethylene glycol, which contains two hydroxyl groups and a diacid, like adipic acid, containing two carboxyl groups.
- Nylon 66 is a polyamide based on hexamethylene diamine and adipic acid.
- The last step of adipic acid synthesis involves nitric acid oxidation, resulting in the formation of nitrous oxide as a byproduct.
- When adipic acid is manufactured from petroleum, huge amounts of ozone depleting nitrous oxide, N 2 O, are produced.
Origin Mid 19th century: from Latin adeps, adip- 'fat' (because the acid was first prepared by oxidizing fats) + -ic. Definition of adipic acid in US English: adipic acidnounəˌdipik ˈasid Chemistry A crystalline fatty acid obtained from natural fats and used especially in the manufacture of nylon. Alternative name: hexanedioic acid; chemical formula: HOOC(CH₂)₄COOH Example sentencesExamples - Nylon 66 is a polyamide based on hexamethylene diamine and adipic acid.
- W. H. Carothers of E. I. DuPont de Nemours first produced nylon in 1931 from hexamethylenediamine and adipic acid, a six-carbon amine and a six-carbon acid.
- The last step of adipic acid synthesis involves nitric acid oxidation, resulting in the formation of nitrous oxide as a byproduct.
- For example, polyesters are created by the reaction of a dihydric alcohol, such as ethylene glycol, which contains two hydroxyl groups and a diacid, like adipic acid, containing two carboxyl groups.
- When adipic acid is manufactured from petroleum, huge amounts of ozone depleting nitrous oxide, N 2 O, are produced.
Origin Mid 19th century: from Latin adeps, adip- ‘fat’ (because the acid was first prepared by oxidizing fats) + -ic. |