Chemical News and Journal of Industrial Science, Volúmenes27-28Chemical news office., 1773 |
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Página 1
... boil between 192 ° and 200 ° ; and only few rectifications were necessary in order to obtain from it dimethyaniline in a ... boiling - point was repeatedly deter- mined , since it had been erroneously stated by M. Louth * to be 202. The ...
... boil between 192 ° and 200 ° ; and only few rectifications were necessary in order to obtain from it dimethyaniline in a ... boiling - point was repeatedly deter- mined , since it had been erroneously stated by M. Louth * to be 202. The ...
Página 2
... boiling at 186 ° ; it is less easily distin- guished from the base boiling at 205 ° , with which more particularly it much agrees in odour ; in fact these two compounds exhibit only the slight difference of 5o in their boiling - point ...
... boiling at 186 ° ; it is less easily distin- guished from the base boiling at 205 ° , with which more particularly it much agrees in odour ; in fact these two compounds exhibit only the slight difference of 5o in their boiling - point ...
Página 3
... boil between 225 ° and 260 ° . By repeated distillation this range of boiling is still considerably expanded ; at the same time , by far the largest portion of the liquid is found to pass between 217 ° and 230 ° . The primary nature of ...
... boil between 225 ° and 260 ° . By repeated distillation this range of boiling is still considerably expanded ; at the same time , by far the largest portion of the liquid is found to pass between 217 ° and 230 ° . The primary nature of ...
Página 4
... boiling acid , and an immediate and copious disengagement of gases ensues , in which carbonic anhydride and sulphuretted hydrogen may be readily recognised . Considerable time , however , elapses before the sulphocyanide is completely ...
... boiling acid , and an immediate and copious disengagement of gases ensues , in which carbonic anhydride and sulphuretted hydrogen may be readily recognised . Considerable time , however , elapses before the sulphocyanide is completely ...
Página 5
... boiling - point , sublimes in beautiful iridescent laminæ . It boils between 216 ° and 220 ° , and distils with- out the slightest decomposition . It dissolves readily in water and alcohol , and slightly in ether . Isobutyramide is the ...
... boiling - point , sublimes in beautiful iridescent laminæ . It boils between 216 ° and 220 ° , and distils with- out the slightest decomposition . It dissolves readily in water and alcohol , and slightly in ether . Isobutyramide is the ...
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Términos y frases comunes
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 232 - Stevenson, president, in the chair. The minutes of the previous meeting having been read and confirmed, Mr.
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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.
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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...
Página 224 - An act to amend the law for the Prevention of Adulteration of Food and Drink, and of Drugs.