The Chemical News and Journal of Physical Science, Volumes 27-28Griffin, Bohn and Company, 1773 |
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Página 1
... heat on the quartary ammonium compound thus places at our disposal a simple means of rising from the benzol series itself to the toluol- , xylol- , and cumol series , or , generally ( for the reaction may probably be utilised in many ...
... heat on the quartary ammonium compound thus places at our disposal a simple means of rising from the benzol series itself to the toluol- , xylol- , and cumol series , or , generally ( for the reaction may probably be utilised in many ...
Página 25
... heat . Concluding that its formation depended upon the presence of sulphuretted hydrogen in the gas used , experiments were made in which pure sodium chloride was exposed to the action of washed and dry sulphuretted hydrogen , at ...
... heat . Concluding that its formation depended upon the presence of sulphuretted hydrogen in the gas used , experiments were made in which pure sodium chloride was exposed to the action of washed and dry sulphuretted hydrogen , at ...
Página 28
... heat of the furnace , and , coating the cemented particles with a liquid glass , prevents the access of the air to it , preventing its combustion , and , finally , forms an objectionable clinker . For reasons to be specified below , the ...
... heat of the furnace , and , coating the cemented particles with a liquid glass , prevents the access of the air to it , preventing its combustion , and , finally , forms an objectionable clinker . For reasons to be specified below , the ...
Página 37
... heat is evolved , but not to a great extent , because the heat given out by the liquefaction of the ammonia is nearly all used up in the liquefaction of the nitrate . The specific gravity of the liquid varies , of course , with its ...
... heat is evolved , but not to a great extent , because the heat given out by the liquefaction of the ammonia is nearly all used up in the liquefaction of the nitrate . The specific gravity of the liquid varies , of course , with its ...
Página 61
... heat of combustion yielded by the substances used as food are correct for ascertaining the heat which these substances will yield when used as fuel in the furnace of a steam - boiler , but are of little , if any , value in respect to ...
... heat of combustion yielded by the substances used as food are correct for ascertaining the heat which these substances will yield when used as fuel in the furnace of a steam - boiler , but are of little , if any , value in respect to ...
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Palavras e frases frequentes
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.