anthraquinone


anthraquinone
/an'threuh kweuh nohn", -kwee"nohn, -kwin"ohn/, n. Chem.
a yellow, water-insoluble, crystalline powder, C14H8O2, usually derived from anthracene or phthalic anhydride: used chiefly in the manufacture of anthraquinone dyes.
[1880-85; ANTHRA(CENE) + QUINONE]

* * *

also called  9,10-anthraquinone 

      the most important quinone derivative of anthracene and the parent substance of a large class of dyes and pigments. It is prepared commercially by oxidation of anthracene or condensation of benzene and phthalic anhydride, followed by dehydration of the condensation product.

      Alizarin and many other vegetable pigments have chemical structures similar to anthraquinone. Anthraquinone can be converted to alizarin and to a number of synthetic dyestuffs, including a large family of vat dyes.

      Although extremely stable toward oxidation, anthraquinone can be easily reduced to a variety of products. In alkaline solution, sodium dithionite reduces it to anthrahydroquinone, the alkali metal salts of which are water-soluble. The use of anthraquinones as vat dyes depends on this chemical reaction.

* * *


Universalium. 2010.

Look at other dictionaries:

  • anthraquinone — [ ɑ̃trakinɔn ] n. f. • 1878; de anthra(cène) et quinone ♦ Chim. Produit de l oxydation de l anthracène, employé dans la fabrication de colorants. ● anthraquinone nom féminin Composé de formule C14H8O2, obtenu pour la première fois en 1835 par… …   Encyclopédie Universelle

  • Anthraquinone — An thra*qui none, n. [Anthracene + quinone.] (Chem.) A hydrocarbon, {C6H4.C2O2.C6H4}, subliming in shining yellow needles. It is obtained by oxidation of anthracene. [1913 Webster] …   The Collaborative International Dictionary of English

  • anthraquinone — [an΄thrə kwi nōn′, an΄thrəkwin′ōn΄] n. [ ANTHRA(CENE) + QUINONE] a yellow crystalline ketone, C6H4 (CO) 2C6H4, produced from anthracene by oxidation or the reaction of phthalic anhydride with benzene: it is used in the manufacture of certain dyes …   English World dictionary

  • Anthraquinone — 9,10 Anthraquinone …   Wikipedia

  • Anthraquinone — Traduction à relire Anthraquinone → Anthraqui …   Wikipédia en Français

  • anthraquinone — antrachinonas statusas T sritis chemija formulė C₆H₄(CO)₂C₆H₄ atitikmenys: angl. anthraquinone rus. антрахинон ryšiai: sinonimas – 9,10 antracendionas …   Chemijos terminų aiškinamasis žodynas

  • anthraquinone — noun Etymology: probably from French, from anthracene + quinone Date: 1869 a yellow crystalline ketone C14H8O2 often derived from anthracene and used especially in the manufacture of dyes …   New Collegiate Dictionary

  • anthraquinone — noun a) A tricyclic quinone, derived from anthracene. b) Any derivative of this parent compound, mostly natural pigments or synthetic dyes …   Wiktionary

  • anthraquinone — an·thra·qui·none .an(t) thrə kwin ōn, kwin .ōn n a yellow crystalline ketone C14H8O2 often derived from anthracene and used esp. in the manufacture of dyes * * * an·thra·quin·one (an″thrə kwinґōn) 1. the 9, 10 quinone derivative… …   Medical dictionary

  • anthraquinone — n. (Chemistry) yellow crystal like water insoluble chemical used in the manufacture of dyes …   English contemporary dictionary


Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”

We are using cookies for the best presentation of our site. Continuing to use this site, you agree with this.