The Chemical News and Journal of Physical Science, Volumes 27-28Griffin, Bohn and Company, 1773 |
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Página 4
... phosphoric anhydride , and the experiment with the sulphocyanate repeated ; but even now acetamide was exclusively obtained . - : ( 1 ) KCNS + C2H3O - OH = C2H3O - OK + HCNS , ( 2 ) HCNS + C2H3O - OH = C2H3O - N - H2 + COS . The ...
... phosphoric anhydride , and the experiment with the sulphocyanate repeated ; but even now acetamide was exclusively obtained . - : ( 1 ) KCNS + C2H3O - OH = C2H3O - OK + HCNS , ( 2 ) HCNS + C2H3O - OH = C2H3O - N - H2 + COS . The ...
Página 5
... phosphoric anhydride ( for the nitrile ) in the ordinary method for producing these nitrogen compounds , is here replaced by simple digestion of the acid with sulpho- cyanate of potassium , bodies generally readily procurable ...
... phosphoric anhydride ( for the nitrile ) in the ordinary method for producing these nitrogen compounds , is here replaced by simple digestion of the acid with sulpho- cyanate of potassium , bodies generally readily procurable ...
Página 18
... phosphoric acid , & c . , contained therein . When , however , a partial solvent of uniform strength is used in all cases alike , and its action continued for the same length of time , it may fairly be presumed that , as between soils ...
... phosphoric acid , & c . , contained therein . When , however , a partial solvent of uniform strength is used in all cases alike , and its action continued for the same length of time , it may fairly be presumed that , as between soils ...
Página 21
... Phosphoric Acid . - T Schlæsing and G. Ville . Bibliography . Under this heading attention is called to the following work : - " Histoire de la Botanique , de la Minéralogie et de la Géologie Depuis les Temps les Plus Réculés jusqu'à ...
... Phosphoric Acid . - T Schlæsing and G. Ville . Bibliography . Under this heading attention is called to the following work : - " Histoire de la Botanique , de la Minéralogie et de la Géologie Depuis les Temps les Plus Réculés jusqu'à ...
Página 27
... phosphoric acid . Wellingborough ore contains 126 per cent of phosphoric acid . From Scotland we have little hope of ore suitable for Bessemer pig . Ireland may furnish a little . Even now Antrim affords a valuable aluminous ore which ...
... phosphoric acid . Wellingborough ore contains 126 per cent of phosphoric acid . From Scotland we have little hope of ore suitable for Bessemer pig . Ireland may furnish a little . Even now Antrim affords a valuable aluminous ore which ...
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acetic acid action alcohol alkaline alumina ammonia analysis aniline apparatus appears applied arsenic acid Assays atoms barium baryta body boiling bromine calcium carbonic acid caustic cent chemical chemistry chemists chloric acid chloride coal colour composition compounds containing converted copper crystallisation crystals cymene decomposed decomposition deposit dilute dissolved distilled employed ether evaporation experiments filtered flask formation formed 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 weight yields zinc
Passagens conhecidas
Página 98 - Chemistry, Medicine, Surgery, and the Allied Sciences. A Dictionary of Chemistry and the Allied Branches of other Sciences.
Página 83 - President in the chair. After the minutes of the previous meeting had been read and confirmed, the Society proceeded to the election of officers and members of Council for the year next ensuing.
Página 230 - Stevenson, president, in the chair. The minutes of the previous meeting having been read and confirmed, Mr.
Página 6 - Others apart sat on a hill retired, In thoughts more elevate, and reasoned high Of Providence, Foreknowledge, Will, and Fate— Fixed fate, free will, foreknowledge absolute — And found no end, in wandering mazes lost.
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 98 - 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 75 - 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 only the very longest lines in the spectrum of the metallic vapour remained.
Página 222 - An act to amend the law for the Prevention of Adulteration of Food and Drink, and of Drugs.