alizarin

Definitions

  • WordNet 3.6
    • n alizarin an orange-red crystalline compound used in making red pigments and in dyeing
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Webster's Revised Unabridged Dictionary
    • n Alizarin (Chem) A coloring principle, C14H6O2(OH)2, found in madder, and now produced artificially as an an orange-red crystalline compound from anthracene. It is used in making red pigments (such as the Turkish reds), and in dyeing.
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Century Dictionary and Cyclopedia
    • n alizarin A peculiar red coloring matter (C14H8O4) formerly obtained from madder, and extensively used as a dyestuff. It was discovered in 1824 by Robiquet and Colin, who obtained it by digesting madder-root with alcohol and treating this with sulphuric acid, thus producing a black mass which they called charbon de garance. On heating, this yielded a sublimate of alizarin in long, brilliant, red, needle-shaped crystals. It is now artificially prepared on a large scale from anthracene (C14H10), a product of the distillation of coal-tar. It forms yellowish-red crystals insoluble in water, difficultly soluble in alcohol, but readily soluble in alkalis, giving to the solution a purplish-red color and beautiful fluorescence. It has acid properties and unites with bases.
    • n alizarin Commercial alizarin is sold in the form of a yellow paste containing 20 per cent. of dry substance, and, less frequently, as a dry powder. The dry substance in the paste is seldom pure alizarin, but contains varying amounts of flavopurpurin and anthrapurpurin, both of which have properties similar to alizarin. Natural alizarin derived from madder contains purpurin in addition to the above. The nature of the various commercial alizarins is often designated by suffixed letters or numbers. Thus alizarin I, alizarin P, and alizarin V are nearly pure alizarin and give blnish reds, while alizarin CA, alizarin G, etc., contain anthrapurpurin or flavopurpurin, or both, and give yellowish reds.
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Chambers's Twentieth Century Dictionary
    • n Alizarin a-liz′a-rēn a colouring matter used in the dyeing of Turkey red, formerly extracted from madder, the commercial name of which in the Levant is alizari.
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Etymology

Webster's Revised Unabridged Dictionary
F. alizarine, fr. alizari,
Chambers's Twentieth Century Dictionary
Fr.; Ar. al, the, and 'açārah, juice pressed out.

Usage

In literature:

M. de Lalande has produced it by the oxidation of alizarin.
"Scientific American Supplement, No. 286" by Various
Artificial alizarine gives the same reaction.
"Scientific American Supplement, No. 363, December 16, 1882" by Various
He also stated that alizarine, 20 per cent.
"Scientific American Supplement, No. 392, July 7, 1883" by Various
The discovery of alizarine red was soon followed by those of alizarine orange, galleine, coeruleine, and, in 1878, of alizarine blue.
"Scientific American Supplement, No. 530, February 27, 1886" by Various
I refer to alizarin blue, alizarin cyanin, alizarin indigo, alizarin green, and coerulin.
"Scientific American Supplement, No. 810, July 11, 1891" by Various
This is alizarin, the coloring matter contained in the madder root.
"Creative Chemistry" by Edwin E. Slosson
Magenta was also a substantive colour, but Alizarin was certainly not one of this class.
"The Chemistry of Hat Manufacturing" by Watson Smith
Alizarine Blue D N W, Alizarine Yellow and 5 oz.
"The Dyeing of Woollen Fabrics" by Franklin Beech
This includes such dyes as logwood, fustic, madder, alizarine, and all the dyes derived from anthracene.
"The Dyeing of Cotton Fabrics" by Franklin Beech
In 1869 alizarine was successfully produced from the refuse coal tar of gas works and the calico printing business was revolutionized.
"Scientific American Supplement, No. 1157, March 5, 1898" by Various
Alizarin (red coloring matter), 44.
"Rugs: Oriental and Occidental, Antique & Modern" by Rosa Belle Holt
The whole of the anthracene is sold for the manufacture of artificial alizarine.
"Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 5" by Various
By heating alizarin blue with strong sulphuric acid, it is converted into alizarin green.
"Coal" by Raphael Meldola
Industrially, it ranks next to indigo and alizarin in importance as a natural dye stuff.
"The Chemistry of Plant Life" by Roscoe Wilfred Thatcher
Madder contains two closely allied colouring matters, namely, alizarin and purpurin.
"Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 8" by Various
Within the last few years they have succeeded, by means of researches, in making alizarine, the colouring principle of madder.
"The Scientific Basis of National Progress" by George Gore
Anthracene was obtained from alizarine, and, after much labour, alizarine was prepared from anthracene.
"Heroes of Science" by M. M. Pattison Muir
The "alizarine" inks, patented by Leonhardi in 1856, are similar inks with the addition of a little madder.
"Encyclopaedia Britannica, 11th Edition, Volume 14, Slice 5" by Various
Of more recent introduction are: alizarin red, I.W.S.
"Encyclopaedia Britannica, 11th Edition, Volume 14, Slice 4" by Various
In dyeing with coal tar colours the alizarin colours may be used after mordanting with chrome alum.
"Animal Proteins" by Hugh Garner Bennett
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In poetry:

In thirty days the ship was far
Beyond the land of Calcobar,
Where men drink Dead Men's Blood for wine,
And dye their beards alizarine.
"The Ballad of Iskander" by James Elroy Flecker

In news:

Alizarin / Madder Lakes companies.
Contains Bob Ross 2" Brush, 1" Brush, Liner Brush, Large Painting Knife, Liquid Blue, Midnight Black, Dark Sienna, Van Dyke Brown, Alizarin Crimson, Sap Green, Cadmium Yellow, Yellow Ochre, Indian Yellow, Bright Red.
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