Chemical News and Journal of Industrial Science, Volumes 27-28Chemical news office., 1773 - Chemistry |
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Page 3
... method of recognising primary monamines which I have pointed out some time ago , and which consists in converting them , by means of alcoholic potash and chloroform , into the powerfully smelling isonitrites , may also with advan- tage ...
... method of recognising primary monamines which I have pointed out some time ago , and which consists in converting them , by means of alcoholic potash and chloroform , into the powerfully smelling isonitrites , may also with advan- tage ...
Page 11
... methods is suggestive of the fecundity of the science , But many text - books unhappily differ in little more than the authors ' names ; in them there is given description of the orthodox method of preparing hydrogen from water ...
... methods is suggestive of the fecundity of the science , But many text - books unhappily differ in little more than the authors ' names ; in them there is given description of the orthodox method of preparing hydrogen from water ...
Page 13
... methods of testing , and adduced a number of results by way of proof that 4 . the method then in general use was not reliable . Shortly after the appearance of their article we pub- lished results in support of that method ( see ...
... methods of testing , and adduced a number of results by way of proof that 4 . the method then in general use was not reliable . Shortly after the appearance of their article we pub- lished results in support of that method ( see ...
Page 14
... method of operation : -10 grms . of sodic acetate are dis- solved in 150 c.c. of water , 50 c.c. of bromine - water are added , and , at intervals of half an hour , 50 c.c. of the manganese solution , care being taken that at the third ...
... method of operation : -10 grms . of sodic acetate are dis- solved in 150 c.c. of water , 50 c.c. of bromine - water are added , and , at intervals of half an hour , 50 c.c. of the manganese solution , care being taken that at the third ...
Page 15
... methods in general use for this purpose - three direct , and one somewhat indirect . The direct comprise a gravimetric and two volumetric processes . The indirect is also a volumetric one , and is known as Mohr's alkalimetric method ...
... methods in general use for this purpose - three direct , and one somewhat indirect . The direct comprise a gravimetric and two volumetric processes . The indirect is also a volumetric one , and is known as Mohr's alkalimetric method ...
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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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Page 232 - Stevenson, president, in the chair. The minutes of the previous meeting having been read and confirmed, Mr.
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Page 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.
Page 144 - London. /Chemical Technology, or Chemistry in its ^-^ Applications to the Arts and Manufactures. By THOMAS RICHARDSON and HENRY WATTS.
Page 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.
Page 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...
Page 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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