Anthracen, tr. and ed. by W. Crookes1877 |
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Pàgina 23
... treated with solvents , sometimes cold and sometimes hot . Some propose 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 ...
... treated with solvents , sometimes cold and sometimes hot . Some propose 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 ...
Pàgina 24
... treated in the cold with about 25 per cent . of naphtha in an iron washing - apparatus , consist- ing of cylinders ... treated like crude anthracen . The anthracen taken from the filter , once washed , is exposed to very strong hydraulic ...
... treated in the cold with about 25 per cent . of naphtha in an iron washing - apparatus , consist- ing of cylinders ... treated like crude anthracen . The anthracen taken from the filter , once washed , is exposed to very strong hydraulic ...
Pàgina 25
... treated like a crude anthracen of a low percentage . The oils last obtained may either be burnt , by driving them under the steam boiler by means of a jet of steam , or they may be used to saturate wood , as a coarse paint , & c . The ...
... treated like a crude anthracen of a low percentage . The oils last obtained may either be burnt , by driving them under the steam boiler by means of a jet of steam , or they may be used to saturate wood , as a coarse paint , & c . The ...
Pàgina 27
... ' is exceedingly difficult to treat . By distillation with potash it is said to be possible to ascertain whether a given sample is tar or pitch anthracen . The former is said to lose nothing by this process , CHEMICALLY PURE ANTHRACEN . 27.
... ' is exceedingly difficult to treat . By distillation with potash it is said to be possible to ascertain whether a given sample is tar or pitch anthracen . The former is said to lose nothing by this process , CHEMICALLY PURE ANTHRACEN . 27.
Pàgina 28
... treated with 150 c.c. of boiling alcohol at 95 per cent .; cooled down to 15.5 ° C. , washed with 250 c.c. alcohol , dried at 100 ° C. , and weighed . In order to test this so - called pure anthracen for foreign insoluble bodies , 5 ...
... treated with 150 c.c. of boiling alcohol at 95 per cent .; cooled down to 15.5 ° C. , washed with 250 c.c. alcohol , dried at 100 ° C. , and weighed . In order to test this so - called pure anthracen for foreign insoluble bodies , 5 ...
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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