Chemical News and Journal of Industrial Science, Volúmenes33-34Chemical news office., 1877 |
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Página 13
... body . It occurred to Hofmann that the substitution had here gone too far , and that for this reason the basic properties of aniline had disappeared . Consequently , by an in- genious process ( devised for the experiment ) , the treat ...
... body . It occurred to Hofmann that the substitution had here gone too far , and that for this reason the basic properties of aniline had disappeared . Consequently , by an in- genious process ( devised for the experiment ) , the treat ...
Página 14
... body was a metal , which he isolated , was in progress when ( in the summer of 1862 ) he was induced to send in a preliminary notice of his investigations to the Royal Society , instead of waiting , as he had intended , till the ...
... body was a metal , which he isolated , was in progress when ( in the summer of 1862 ) he was induced to send in a preliminary notice of his investigations to the Royal Society , instead of waiting , as he had intended , till the ...
Página 18
... Bodies . might have been foreseen if for the flame there were sub- stituted a conductor insulated and armed with ... body , the formation of sulphide is proved by the yellow colouration which the glass assumes , but which disappears ...
... Bodies . might have been foreseen if for the flame there were sub- stituted a conductor insulated and armed with ... body , the formation of sulphide is proved by the yellow colouration which the glass assumes , but which disappears ...
Página 26
... body , No. 3 , is supposed to result from the elimination of H2 and their replacement by the divalent group ( O2 ) , & c . Such lists can be projected in several ways , according to the object in view , and we offer the following ...
... body , No. 3 , is supposed to result from the elimination of H2 and their replacement by the divalent group ( O2 ) , & c . Such lists can be projected in several ways , according to the object in view , and we offer the following ...
Página 60
... bodies which acquire a yellow colour on being heated ; and those of the borate of copper class , which change from one ... body expanding through the influence of heat being really a continuous series of allo- tropes . In support of this ...
... bodies which acquire a yellow colour on being heated ; and those of the borate of copper class , which change from one ... body expanding through the influence of heat being really a continuous series of allo- tropes . In support of this ...
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Términos y frases comunes
acetic acetic acid action alcohol alizarin alkali alumina ammonia ammonium amount analysis aniline aniline-black anthracen apparatus atomic bilirubin biliverdin blue body boiling bromine calcium carbonic acid caustic cent Chemical Society chemistry chemists chlorate chloride colour compounds condensation containing copper crystallisation cyanide cyanogen decomposed decomposition dilute dissolved distilled dyeing electric employed ether evaporation examination experiments filter furnace gases give glass grms heat hydrate hydrochloric acid hydrogen Improvements inches insoluble iodine iron kilos light lime liquid litre London manganese manufacture matter means mercury metal meteorites method mineral mixture nitrate nitric acid nitrogen observed obtained oxide oxidised oxygen paper patent phosphate platinum potash potassium precipitate present produced Prof quantity radiometer reaction researches residue Royal salt sample selenium silver soda sodium soluble solution substance sugar sulphate sulphide sulphuric acid temperature tion tube vanadium vapour whilst yellow yield zinc
Pasajes populares
Página 131 - ... ultra-red, and the minimum in the ultra-violet. Taking the maximum at 100, the following are the mechanical values of the different colours of the spectrum : — Ultra-red 100 Extreme red 85...
Página 228 - ... an error. He also considered that in a lake of so complicated a form as that of Geneva observations would be required at at least ten different points, and a complete solution of such a case would be analogous to the study of magnetic intensity in the manner suggested by Gauss. NOTICES OF BOOKS. Science made Easy : A Series of Familiar Lectures on the Elements of Scientific Knowledge most required in Daily bife.
Página 265 - TATE in the Chair. The following Candidates were elected Members of the Society : — Horatio Waddington, Esq., late Fellow of Trinity College, Cambridge.
Página 87 - A DICTIONARY of CHEMISTRY and the Allied Branches of other Sciences. By HENRY WATTS, FRS assisted by eminent Contributors.
Página 1 - Royal will and pleasure, that no resolution, or bye-law, shall on any account or pretence whatsoever be made by the said body politic and corporate in opposition to the general scope, true intent, and meaning of this our Charter, or the laws or statutes of our Realm...
Página 29 - FRS, president, in the chair. — The following candidates were elected members of the Society : — Mr.
Página 241 - Trade may by licence under the hand of one of the secretaries or assistant secretaries, direct such association to be registered with limited liability, without the addition of the word limited...
Página 121 - The variations in the luminosity of a " standard " candle will cease to be of importance. Any candle may be taken ; and if it be placed at such a distance from the apparatus that it will give a uniform deflection, say of 100 divisions, the standard can be reproduced at any subsequent time ; and the burning of the candle may be tested during the photometric experiments by taking the deflection it causes from time to time, and altering its distance, if needed, to keep the deflection at 100 divisions.
Página 104 - President, in the Chair. AFTER the minutes of the previous meeting had been read and confirmed, and the names of the visitors announced, the following names were read for the first time : — Messrs.
Página 81 - ... limits what it can ; a still more watery one will make the brain dropsical, and produce all the conditions of mechanical pressure on the brain. All these processes are the necessary consequences of the affinities of the phosphorised substances, and, these being known, the phenomena could be predicted, if they were not sufficiently known as phenomena, though hitherto destitute of an explanation. Thus the so-called brain-fungus, the continued protrusion of brain-matter through apertures of the...