Anthracen, tr. and ed. by W. Crookes1877 |
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Pàgina xi
... alcohol from Present mode of manufacture Garanceux • Madder flower ( fleur de garance ) Green alizarin ( alizarine verte ) Extracts of madder Pernod's process Rien's process Schützenberger's process Identity of natural and artificial ...
... alcohol from Present mode of manufacture Garanceux • Madder flower ( fleur de garance ) Green alizarin ( alizarine verte ) Extracts of madder Pernod's process Rien's process Schützenberger's process Identity of natural and artificial ...
Pàgina 23
... alcohol or ligroin , others benzol , naphtha , or even bisulphide of carbon . Some of these detergents are very unpractical , either on account of their high price , their volatility , or from their power of dissolving too much ...
... alcohol or ligroin , others benzol , naphtha , or even bisulphide of carbon . Some of these detergents are very unpractical , either on account of their high price , their volatility , or from their power of dissolving too much ...
Pàgina 24
... Alcohol and bisulphide of carbon must be at once rejected , on account of their high price and their great volatility . Ligroin is cheap , but does not work well . Benzol is too dear . The best purifying agent is heavy naphtha , the so ...
... Alcohol and bisulphide of carbon must be at once rejected , on account of their high price and their great volatility . Ligroin is cheap , but does not work well . Benzol is too dear . The best purifying agent is heavy naphtha , the so ...
Pàgina 28
... Alcohol process . - 20 grms . anthracen are heated to a boil with 100 c.c. of alcohol at 98 per cent . , allowed to cool , filtered on a weighed filter , and washed with alcohol till the filtrate amounts to 300 c.c. The residue on the ...
... Alcohol process . - 20 grms . anthracen are heated to a boil with 100 c.c. of alcohol at 98 per cent . , allowed to cool , filtered on a weighed filter , and washed with alcohol till the filtrate amounts to 300 c.c. The residue on the ...
Pàgina 30
... alcohol method has this defect , that the alcohol dis- solves a certain quantity of anthracen , whilst it does not remove any chrysen which may be present . The weight of the latter may , indeed , to a certain extent compensate for the ...
... alcohol method has this defect , that the alcohol dis- solves a certain quantity of anthracen , whilst it does not remove any chrysen which may be present . The weight of the latter may , indeed , to a certain extent compensate for the ...
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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