| 释义 |
alizarin Chem.|əˈlɪzərɪn|
Also alizarine.
[a. Fr. alizarine, f. Alizari: see -in.]
The red colouring matter of the madder root (C14H8O4) discovered and named by Robiquet; now prepared from anthracene. Also attrib., designating dyestuffs derived from, or similar in action to, alizarin; the colours of these dyes.
1835Hoblyn Med. Dict., Alizarine, the red colouring matter of madder. 1863Watts Dict. Chem. (1879) I. 114 Alizarin in the anhydrous state forms red prisms inclining more or less to yellow. 1875Ure Dict. Arts I. 70 In 1869 Messrs. Graebe and Liebermann made the important discovery that alizarine might be produced artificially from anthracene, one of the products of coal-tar distillation. 1876Jrnl. Chem. Soc. ii. 234 The contamination of the printed cotton with iron is thus prevented, and only the pure alumina lake, that is to say, the pure alizarin-red, remains upon the cotton. 1885C. T. Davis Manuf. Leather xliii. 735 Alizarine red (a pale flesh color) is produced by rubbing the cleansed and trodden skins with a solution of alizarine or extract of madder in weak soda lye and rinsing in water. 1901Kynoch Jrnl. II. 36/2 The use of picric acid as a dye has been superseded by the use of alizarine and naphtol yellows. 1954Archit. Rev. CXV. 286/2 It makes a particularly good textured background for pictures, and is manufactured in six colours: natural, light corn, tobacco, strawberry, alizarin green and egyptian green. 1962Listener 11 Jan. 76/1 A fortress of almost vertical rocks..burnt umber and alizarin red. |