Chemical News and Journal of Industrial Science, Volumes 27-28Chemical news office., 1773 |
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Página 2
... obtained by converting solid toluidine into the trimethylated toluyl ammonium iodide , and then sub- mitting the corresponding hydrate to distillation , has a V.W. o'988 , and boils at 210 ° . The substance thus obtained , the ...
... obtained by converting solid toluidine into the trimethylated toluyl ammonium iodide , and then sub- mitting the corresponding hydrate to distillation , has a V.W. o'988 , and boils at 210 ° . The substance thus obtained , the ...
Página 3
... obtained boiled between 225 ° and 227 ° , and had the V.W. o'9633 ; it did not solidify when exposed to a temperature of -10 ° . I am therefore inclined to assume that only one cumidine is formed by the action of heat on trimethylated ...
... obtained boiled between 225 ° and 227 ° , and had the V.W. o'9633 ; it did not solidify when exposed to a temperature of -10 ° . I am therefore inclined to assume that only one cumidine is formed by the action of heat on trimethylated ...
Página 4
... obtained . On submitting , however , the gases evolved during the reaction to a closer examination , the formation of aceta- mide became at once intelligible . It was found that a large proportion of these gases consisted of carbonic ...
... obtained . On submitting , however , the gases evolved during the reaction to a closer examination , the formation of aceta- mide became at once intelligible . It was found that a large proportion of these gases consisted of carbonic ...
Página 16
... obtained by the method of working just de scribed with those obtained by oxidising the sulphide with nitro - hydrochloric acid . In some laboratories both processes are used in valuing sulphur ores . The tables give the sulphur per cent ...
... obtained by the method of working just de scribed with those obtained by oxidising the sulphide with nitro - hydrochloric acid . In some laboratories both processes are used in valuing sulphur ores . The tables give the sulphur per cent ...
Página 38
... obtained the coerulignon quite free from ash , thus proving that it is not a coloured lake , the idea has struck me that it is perhaps formed by the oxidising action of the bichromate of potassa upon some substance present in the crude ...
... obtained the coerulignon quite free from ash , thus proving that it is not a coloured lake , the idea has struck me that it is perhaps formed by the oxidising action of the bichromate of potassa upon some substance present in the crude ...
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Palavras e frases frequentes
acetic acid action alcohol alkaline alumina ammonia analysis aniline anthracene apparatus appears applied Assays atoms barium baryta body boiling bromine calcium carbonic acid caustic cent chemical chemistry chemists chloric acid chloride coal colour combination composition compounds containing converted copper crystallisation crystals decomposed decomposition deposited dilute dissolved distilled electricity employed ether evaporation experiments filtered flask formation formed formic acid formula furnace fused glass heat hydrate hydrochloric acid hydrogen Improvements insoluble iodide iron Laboratory lime liquid magnesia manganese manufacture matter metallic method methyl mineral mixture nitrate nitric acid nitrogen observed obtained ordinary oxalic oxide oxidising oxygen paper PATENTS phosphate phosphoric acid potash potassa potassium precipitate prepared present produced pure pyrites quantity reaction Royal salt sample silicate silver Society soda sodium soluble solution substance sulphate sulphide sulphuretted hydrogen sulphuric acid temperature tion toluidine treated tube vapour washed yields zinc
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Página 108 - Chemistry, Medicine, Surgery, and the Allied Sciences. A Dictionary of Chemistry and the Allied Branches of other Sciences.
Página 232 - Stevenson, president, in the chair. The minutes of the previous meeting having been read and confirmed, Mr.
Página 5 - Thy Father has written for thee." " Come, wander with me," she said, "Into regions yet untrod; And read what is still unread In the manuscripts of God." And he wandered away and away With Nature, the dear old nurse, Who sang to him night and day The rhymes of the universe. And whenever the way seemed long, Or his heart began to fail, She would sing a more wonderful song, Or tell a more marvellous tale.
Página 170 - By a delicate mathematical analysis, Thomson arrives at the theorem that the ''average pressure at any point of an incompressible, frictionless fluid, originally at rest, but set in motion and kept in motion by solids, moving to and fro, or whirling round in any manner, through a finite space of it," would explain the attractions just described.
Página 144 - London. /Chemical Technology, or Chemistry in its ^-^ Applications to the Arts and Manufactures. By THOMAS RICHARDSON and HENRY WATTS.
Página 96 - Supplement; bringing the Record of Chemical Discovery down to the end of the year 1869 ; including also several Additions to, and Corrections of, former results which have appeared in 1870 and 1871.
Página 253 - ... effect is proportional to the magnetic intensity of the bar multiplied by the current traversing the coil seems to indicate that in this case the effect is produced by the attraction of the magnetic particles by the coil. But then it will be asked why so remarkable an augmentation of the effect is produced by the increase of tension in the case of the soft iron bars. When we are able to answer this question in a satisfactory manner, we shall probably have a much more complete acquaintance with...
Página 73 - Since it appeared that the purest and densest vapour alone gave the greatest number of lines, it became of interest to examine the spectra of compounds consisting of a metal combined with a nonmetallic element. Experiments with chlorides are recorded. It was found in all cases that the difference between the spectrum of the chloride and the spectrum of the metal was that under the same spark-conditions all the short lines were obliterated. Changing the spark-conditions, the final result was that...
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