Anthracen, tr. and ed. by W. Crookes1877 |
Des de l'interior del llibre
Resultats 1 - 5 de 49.
Pàgina 28
... insoluble bodies , 5 grms . are taken and boiled till all the anthracen is dissolved , and the liquid is filtered whilst boiling . The residue is further washed with boiling alcohol , and the portion insoluble in this liquid — which if ...
... insoluble bodies , 5 grms . are taken and boiled till all the anthracen is dissolved , and the liquid is filtered whilst boiling . The residue is further washed with boiling alcohol , and the portion insoluble in this liquid — which if ...
Pàgina 30
... insoluble matter , with the melting- point 187.5 ° C. With bisulphide of carbon the yield was 23.250 per cent . , melting - point 198.2 ° C .; and by oxidation to anthrachinon 28.358 per cent . of pure anthracen . Lucas has also ...
... insoluble matter , with the melting- point 187.5 ° C. With bisulphide of carbon the yield was 23.250 per cent . , melting - point 198.2 ° C .; and by oxidation to anthrachinon 28.358 per cent . of pure anthracen . Lucas has also ...
Pàgina 34
... insoluble in acetic acid , they are destroyed during the oxidation . If inorganic bodies occur , they con- sist of non - volatile matter - sand , & c . — and are best deter- mined by the incineration of a weighed portion of crude ...
... insoluble in acetic acid , they are destroyed during the oxidation . If inorganic bodies occur , they con- sist of non - volatile matter - sand , & c . — and are best deter- mined by the incineration of a weighed portion of crude ...
Pàgina 39
... insoluble in water , but dissolves freely in alcohol , ether , and benzol . It is easily volatilised along with the vapour of water , and even with that of alcohol . The solid hydrocarbon is not fluorescent , but its solutions display a ...
... insoluble in water , but dissolves freely in alcohol , ether , and benzol . It is easily volatilised along with the vapour of water , and even with that of alcohol . The solid hydrocarbon is not fluorescent , but its solutions display a ...
Pàgina 40
... insoluble . The former is undecomposed anthracendihydride , melting at 106 ° ; the latter is bibromanthracen , which melts between 219 ° and 220 ° . Anthracen is not obtained from this reaction . The action of 2 mol . bromine upon 1 mol ...
... insoluble . The former is undecomposed anthracendihydride , melting at 106 ° ; the latter is bibromanthracen , which melts between 219 ° and 220 ° . Anthracen is not obtained from this reaction . The action of 2 mol . bromine upon 1 mol ...
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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