Anthracen, tr. and ed. by W. Crookes1877 |
Des de l'interior del llibre
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Pàgina 11
... convert bibrombenzol and bibromnaphthalin into the corresponding quinons , makes it probable that the atoms of bromine replace those atoms of hydrogen which take a peculiar position , and which in a certain manner are more aromatic than ...
... convert bibrombenzol and bibromnaphthalin into the corresponding quinons , makes it probable that the atoms of bromine replace those atoms of hydrogen which take a peculiar position , and which in a certain manner are more aromatic than ...
Pàgina 32
... converted into acids or into bodies soluble in alkaline liquids , and can thus be separated from anthra- quinon . This applies equally to phenanthren , chrysen , & c . , and to paraffin and the so - called empyreumatic resins , & c . In ...
... converted into acids or into bodies soluble in alkaline liquids , and can thus be separated from anthra- quinon . This applies equally to phenanthren , chrysen , & c . , and to paraffin and the so - called empyreumatic resins , & c . In ...
Pàgina 34
... 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.
... 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.
Pàgina 36
... converted into anthracendichloride , C1HoCl2 , which crystallises from ether in yellowish , fusible , and volatile needles , which on treatment with alcoholic potassa become the monochloride , C1 , H , Cl . 14 The action of bromine ...
... converted into anthracendichloride , C1HoCl2 , which crystallises from ether in yellowish , fusible , and volatile needles , which on treatment with alcoholic potassa become the monochloride , C1 , H , Cl . 14 The action of bromine ...
Pàgina 37
... converted into anthracendihy- dride , C1H1H2 , but on more prolonged heating there is formed anthracenhexahydride , C14H10H6 . 14 101 29 If a cold saturated solution of anthracen in benzol is ex- posed to the rays of the sun , tabular ...
... converted into anthracendihy- dride , C1H1H2 , but on more prolonged heating there is formed anthracenhexahydride , C14H10H6 . 14 101 29 If a cold saturated solution of anthracen in benzol is ex- posed to the rays of the sun , tabular ...
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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