Chemical News and Journal of Industrial Science, Volumes 27-28Chemical news office., 1773 - Chemistry |
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Page 14
... direct practical utility . When a hydrochloric acid solution of perchloride of iron is neutralised by means of carbonate of soda , so as to cause a permanent precipitate , and the latter is cautiously re - dissolved by the addition of ...
... direct practical utility . When a hydrochloric acid solution of perchloride of iron is neutralised by means of carbonate of soda , so as to cause a permanent precipitate , and the latter is cautiously re - dissolved by the addition of ...
Page 15
... 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 , useful in many cases , but scarcely applicable to ...
... 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 , useful in many cases , but scarcely applicable to ...
Page 18
... direct and indisputable . It is of no small interest to know whether the soil we intend to cultivate contains 0'75 per cent of potash and o'25 of phosphoric acid , soluble in HCl , or only the fifth or tenth part of these amounts . One ...
... direct and indisputable . It is of no small interest to know whether the soil we intend to cultivate contains 0'75 per cent of potash and o'25 of phosphoric acid , soluble in HCl , or only the fifth or tenth part of these amounts . One ...
Page 25
... direct reaction . 2NaCl + H2S = Na2S + 2HCI . More experiments are in progress , to decide whether this is the only and ultimate reaction that takes place ; but from examinations of the gaseous products , the author inclines to the ...
... direct reaction . 2NaCl + H2S = Na2S + 2HCI . More experiments are in progress , to decide whether this is the only and ultimate reaction that takes place ; but from examinations of the gaseous products , the author inclines to the ...
Page 29
... direct sunlight , the same effect is obtained instantaneously , and a violent explosion is the consequence . The cause of this union under these conditions has not hitherto been traced out ; but Dr. Budde has obtained the following ...
... direct sunlight , the same effect is obtained instantaneously , and a violent explosion is the consequence . The cause of this union under these conditions has not hitherto been traced out ; but Dr. Budde has obtained the following ...
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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
Popular passages
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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.
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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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