phthalamicadj.

Brit.

/(f)θəˈlamɪk/, U.S.

/θəˈlæmɪk/

Origin: A borrowing from French. Etymon: French phtalamique.

Etymology: < French phtalamique (1850 or earlier) < phtal- (in phtalique phthalic adj.) + am- (in amide amide n.) + -ique -ic suffix. Compare carbamic adj. at carbamide n. Derivatives, oxamic adj., and slightly later phthalic adj., amic adj.

Chemistry.

phthalamic acid n. a solid acidic compound, C₆H₄(COOH)(CONH₂), the monamide of phthalic acid, produced by reacting ammonia with phthalic anhydride.

ΚΠ

1855 W. Odling tr. A. Laurent Chem. Method 53 Sulphamic, phosphamic, carbamic, oxamic, phthalamic, &c., acids, are well known to us.

1866 H. Watts Dict. Chem. IV. 627 Phthalamic acid..crystallizes in a mass of fine flexible needles, forming an acid solution with water.

1903 Jrnl. Amer. Chem. Soc. 25 610 Hoogewerff and Van Dorp obtained phthalamic acid by the action of concentrated sulphuric acid upon o-cyanbenzoic acid.

1949 Science 10 June 588/1 A new group of plant growth regulating chemicals, the N-aryl phthalamic acids, has been discovered.

1998 Hermes Database (Nexis) 4 Nov. The main urinary metabolites are phthalamic acid derivatives.

This entry has been updated (OED Third Edition, March 2006; most recently modified version published online March 2022).

单词	phthalamic
释义	phthalamicadj. Brit. /(f)θəˈlamɪk/, U.S. /θəˈlæmɪk/ Origin: A borrowing from French. Etymon: French phtalamique. Etymology: < French phtalamique (1850 or earlier) < phtal- (in phtalique phthalic adj.) + am- (in amide amide n.) + -ique -ic suffix. Compare carbamic adj. at carbamide n. Derivatives, oxamic adj., and slightly later phthalic adj., amic adj. Chemistry. phthalamic acid n. a solid acidic compound, C₆H₄(COOH)(CONH₂), the monamide of phthalic acid, produced by reacting ammonia with phthalic anhydride. ΚΠ 1855 W. Odling tr. A. Laurent Chem. Method 53 Sulphamic, phosphamic, carbamic, oxamic, phthalamic, &c., acids, are well known to us. 1866 H. Watts Dict. Chem. IV. 627 Phthalamic acid..crystallizes in a mass of fine flexible needles, forming an acid solution with water. 1903 Jrnl. Amer. Chem. Soc. 25 610 Hoogewerff and Van Dorp obtained phthalamic acid by the action of concentrated sulphuric acid upon o-cyanbenzoic acid. 1949 Science 10 June 588/1 A new group of plant growth regulating chemicals, the N-aryl phthalamic acids, has been discovered. 1998 Hermes Database (Nexis) 4 Nov. The main urinary metabolites are phthalamic acid derivatives. This entry has been updated (OED Third Edition, March 2006; most recently modified version published online March 2022). < adj.1855
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