... XXXI.-Anthracene and phenanthrene 457 Anthracene 457 Anthraquinone - Alizarin - Phenanthrene - Phenanthra- quinone-Diphenic Acid 462-471 Chapter ... anthracene,' and is employed in the manufacture of alizarin dyes. The oil drained from the anthracene is ...

... Its weak acid char- acter resembles that of alizarin. Indeed, it is chemically related, as when distilled ... 2. This substance, which is produced from commercial alizarin by reduction, was first described by Liebermann (Berichte ...

... Jahrhundert andere derselben Art gefolgt, so sind das Alizarin, der Indigo, das Coniin, der Trauben- und der ... bereitet werden, und mit Alaun gebeizt, dann mit Alizarin ausgefärbt. Alizarin wurde früher aus der. Krappflanze (Rubia ...

... the starting CO point in the manufacture of alizarin, C6H4<£Q>CgH2(OH)2, or artificial madder. ... have succeeded in the artificial produc- tion of alizarin (the coloring matter of madder), indigo, salicylic acid, ...

... and Anthranol, 981. Anthraquinone .......... 981 Oxyanthraquinones ......... 982 Dioxyanthraquinones: Alizarin—Quinizarin — Purpurox- anthin—Anthraflavone, Anthraflavic, and Iso-antliraflavic ...

... to make the fil- trate measure 32 fluidounces. Alizarin Ink. Alizarin paste gr. 225 Sodium carbonate, pure gr. 105 ... in a small amount of water, add the alizarin paste, then the extract of logwood pre- viously ...

... Phthalei'ns, 388, 389. 4. Of Anthraquinone and Alizarin, 389, 390* 5. Of Quinoline and Acridine, 390. ... 115. Horizontal Aniline-still .... 387 116. Autoclave for Alizarin Manufac- ture 390 117. Madder, Indigo, and Archil . . ...

... Phenol to an Anthraquinone Derivative ........ 365 45. Reaction: Alizarin from Sodium /3-Anthraquinonemonosulphonate 367 46. Reaction: Zinc ... from pyrocatechol (o-dioxybenzene), besides a second isomer, alizarin is obtained, showing that the two hydroxyl groups ...

... sublimes in reddish-yellow needles, resembling those of alizarin, which was formerly thought to be an isomeride ... the colouring principle of madder, called it artificial alizarin.2 Analyses of this substance soon convinced him, ...

... most interesting of the colouring substances is the alizarin of Bobiquet and Collin. It may be obtained ... by precipitating a mixture of the solutions of alizarin and alum. Bochleder finds a close analogy between ...