英语词汇“pyromellitic acid”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

pyromellitic adj.

Brit.

/ˌpʌɪrə(ʊ)mᵻˈlɪtɪk/

U.S.

/ˌpaɪroʊməˈlɪdɪk/

pyromellitic acid a crystalline acid produced by heating mellitic acid.Systematic name: benzene-1,2,4,5-carboxylic acid; C₆H₂(COOH)₄.

ΚΠ

1831 T. Thomson Syst. Chem. (ed. 7) II. ii. i. 63 Mellitic acid... When sublimed..a crystalline fusible matter is obtained, which possesses peculiar properties, and has obtained the name of pyromellitic acid.

1938 Thorpe's Dict. Appl. Chem. (ed. 4) II. 310/2 On heating with an excess of strong sulphuric acid at 280°–300°C, charcoal yields mellitic acid..and the anhydride of pyromellitic acid.

1992 Biophysical Jrnl. 61 189 A pyromellitic acid residue has been esterified to the ethanolamine —OH group.

单词	pyromellitic acid
释义	> as lemmas pyromellitic acid pyromellitic adj. Brit. /ˌpʌɪrə(ʊ)mᵻˈlɪtɪk/ , U.S. /ˌpaɪroʊməˈlɪdɪk/ pyromellitic acid a crystalline acid produced by heating mellitic acid.Systematic name: benzene-1,2,4,5-carboxylic acid; C₆H₂(COOH)₄. ΚΠ 1831 T. Thomson Syst. Chem. (ed. 7) II. ii. i. 63 Mellitic acid... When sublimed..a crystalline fusible matter is obtained, which possesses peculiar properties, and has obtained the name of pyromellitic acid. 1938 Thorpe's Dict. Appl. Chem. (ed. 4) II. 310/2 On heating with an excess of strong sulphuric acid at 280°–300°C, charcoal yields mellitic acid..and the anhydride of pyromellitic acid. 1992 Biophysical Jrnl. 61 189 A pyromellitic acid residue has been esterified to the ethanolamine —OH group. extracted from pyro-comb. form < as lemmas
随便看	cercariae cercarial cercarian cercarias cercariform cerceaus cercelle cercelée cerci cercis cerclage cercomonad cercopithecoid cercopithecus cercus cercuses cerd cere cere-candle cereal cereal aisle cereal bar cereal grass cerealer cerealest

> as lemmas