| 释义 |
gallein|ˈgælɪɪn|
[f. gall-ic a.2 + (-ein.]
A brown-red powder, or small green crystals, obtained by heating pyrogallol and phthalic anhydride. Used as a dye.
1871Jrnl. Chem. Soc. IX. 700 Gallein is decomposed by heat like hæmatein, carbonisation taking place. 1885in Syd. Soc. Lex. 1953H. W. Grimmel in H. Gilman Org. Chem. III. iv. 317 This dye [sc. Coerulein] is obtained from Gallein by treatment with concentrated sulfuric acid at 200°. |