अंग्रेज़ी किताबें जो «FLAVOPURPURIN» से संबंधित हैं
निम्नलिखित ग्रंथसूची चयनों में
flavopurpurin का उपयोग पता करें।
flavopurpurin aसे संबंधित किताबें और अंग्रेज़ी साहित्य में उसके उपयोग का संदर्भ प्रदान करने वाले उनके संक्षिप्त सार।.
1
A dictionary of applied chemistry
It is obtained by the nitration of flavopurpurin with ordinary nitrio acid. Fast orange
shades can be produced by applying this compound with an aluminium mordant.
On treatment with glycerol and sulphuric Alizarin bordeaux is by far the most ...
Thomas Edward Thorpe (Sir.),
1912
2
Technical Methods of Chemical Analysis
Flavopurpurin, 1:2:6-Trihydroxyanthraquinone.-Pure flavopurpurin crystallises in
anhydrous yellow needles, which are almost insoluble in water, but dissolve
easily in cold alcohol and also in glacial acetic acid. Its melting point is above
330°.
Georg Lunge, Charles Alexander Keane,
1911
3
Anthracen: Its Constitution, Properties, Manufacture, and ...
Flavopurpurin, C14Ha05. Flavopurpurin is obtained from a-
bisulphanthraquinonic acid in the same manner as isopurpurin from the /3-acid,
from the first product of the reaction, anthraflavic acid. In flavopurpurin the two
hydroxyls are distributed ...
Gustav Auerbach, Sir William Crookes,
1877
4
Anthracen, tr. and ed. by W. Crookes
Triacetylisopurpurin, C14H5(C2HsO)3Os, crystallises in pale- yellow scales and
melts at 220°-222°. Flavopurpurin, C14H8O5. Flavopurpurin is obtained from a-
bisulphanthraquinonic acid in the same manner as isopurpurin from the y3-acid,
...
Gustav Auerbach, sir William Crookes,
1877
5
The Chemistry of the Coal-tar Dyes
Flavopurpurin is isomeric with purpurin and the only difference in its constitution
is the change of one oxygen atom from position 4 in purpurin to 6 in flavopurpurin
. This change of position in the oxygen atom induces a change in the shade of ...
Irving Wetherbee Fay,
1919
6
Allen's Commercial Organic Analysis: A Treatise on the ...
All these substances present a very close general resemblance to alizarin proper
, but all except the trihydroxyanthraquinones (flavopurpurin and anthrapurpurin)
are valueless as dyes, and these latter give very different shades from those ...
Alfred Henry Allen, Henry Leffmann, William A. Davis,
1912
7
Dyes classified by intermediates: dyes tabularly arranged ...
Lange, Die Schwefel-farbstoffe, 145 Dye Derived from Nitro-diphenylamine-
sulfonic Acid 3-Nitro-flavopurpurin (C. A. nomen.) /3-Nitro-flavopurpurin 3-Nitro-l :
2: 6-trihydroxy-anthraquinone ,CОч OH HO OH NO, :ChH7NO7 = 301 Dyes
Derived ...
Randolph Norris Shreve, Warren N. Watson, Arthur R. Willis,
1922
8
Journal of the Society of Chemical Industry
The lime lake of the Flavopurpurin is filtered off hot and washed, whilst the
mother liquor is concentrated to 20° B. and the sodium anthraflavate crystallised.
The Flavopurpurin lime-lake after decomposition with acid, gave 67 kilos, of 99
per ...
9
Commercial Organic Analysis
In the following table, the principal distinctions between anthra- and flavopurpurin
are exhibited: Appearance. Orange needles; anhydrous. . Golden-yellow needles
; anhy- I drous. Solubility in alcohol. Easily soluble in boiling alcohol.
Alfred Henry Allen, Samuel Schmucker Sadtler, Wm. A. Davis
10
A manual of dyeing: for the use of practical dyers, ...
It dissolves in caustic alkalies, in ammonia, and in sodium carbonate with a violet
colour, which is redder than that obtained with Alizarin, but bluer than that from
Flavopurpurin. Isopurpurin dissolves in sulphuric acid with a brown colour ; water
...
Edmund Knecht, Richard Loewenthal, Christopher Rawson,
1917