Anthracen, tr. and ed. by W. Crookes1877 |
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Pàgina 9
... becomes less soluble . The behaviour of the three hydrocarbons with chemical agents is also very similar . None of them yields on oxidation an acid with the same proportion of carbon . They all evince great permanence as regards the ...
... becomes less soluble . The behaviour of the three hydrocarbons with chemical agents is also very similar . None of them yields on oxidation an acid with the same proportion of carbon . They all evince great permanence as regards the ...
Pàgina 12
... is formed . This latter enters again into reaction in various ways . It may next , losing HCl , become condensed , forming the hydrocarbon— CH - CH - CH - CH2 It may further react with one molecule of benzylchloride in 12 ANTHRACEN .
... is formed . This latter enters again into reaction in various ways . It may next , losing HCl , become condensed , forming the hydrocarbon— CH - CH - CH - CH2 It may further react with one molecule of benzylchloride in 12 ANTHRACEN .
Pàgina 17
... becomes soft and plastic like wax , and in the heat of summer it melts , and can therefore be transported unpacked in open carts only in winter . The heavy oils consist of liquid oily hydrocarbons , naph- thalin , phenol , cresol , and ...
... becomes soft and plastic like wax , and in the heat of summer it melts , and can therefore be transported unpacked in open carts only in winter . The heavy oils consist of liquid oily hydrocarbons , naph- thalin , phenol , cresol , and ...
Pàgina 22
... becomes a true sublimation , the anthracen escaping not as a liquid , but as a powder - sometimes even crystalline . According to whichever method the crude , smeary , thick- flowing anthraceniferous mass has been obtained , it must be ...
... becomes a true sublimation , the anthracen escaping not as a liquid , but as a powder - sometimes even crystalline . According to whichever method the crude , smeary , thick- flowing anthraceniferous mass has been obtained , it must be ...
Pàgina 34
... but it is only converted into sulphacids at temperatures far above 200 ° C. With the impurities the case is different . Chrysoquinon becomes at 100 ° C. an indigo - blue 34 ANTHRACEN . Preparation of pure alizarin Willgerodt's method.
... but it is only converted into sulphacids at temperatures far above 200 ° C. With the impurities the case is different . Chrysoquinon becomes at 100 ° C. an indigo - blue 34 ANTHRACEN . Preparation of pure alizarin Willgerodt's method.
Frases i termes més freqüents
acetic ether alcohol alcoholic solution alizarin alkali ammonia anthra anthracen anthracendihydride anthraflavic acid anthraquinon aqueous solution baryta barytic salt benzol bibromanthracen bisulphide of carbon blue bromine brown cent Centralblatt Chem chloride chromic acid chrysammic acid chrysophanic acid cold colouring matter compound concentrated sulphuric acid converted Crown 8vo crystallisation from alcohol crystals decomposed deposited deutsch dilute dinitroanthraquinon dissolves distillation dried Edition ether evaporation filtered filtrate flocks formation formed formula Gesellsch glacial acetic acid Graebe and Liebermann grms heated hydrate of potassa hydriodic acid hydrocarbon hydrochloric acid hydroxyls insoluble isopurpurin lime liquid madder mass melting melting-point methylanthracen mixture mordants naphthalin nitric acid obtained oxidation oxidising agents oxyanthraquinon Pharm phthalic acid potash powder precipitate purified purpurin quinon reaction readily soluble red colour residue Schunck Schützenberger soda soluble in alcohol soluble in water sparingly soluble sublimes substance sulpho-acids sulphuric acid temperature tion whilst Woodcuts yellow colour yellow needles yields
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