Chemical News and Journal of Industrial Science, Volúmenes21-22Chemical news office, 1870 |
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Página 3
... give off vapour will depend upon the boiling points of the more volatile hydrocarbons , and upon the amount of them con- tained in the oil . Consequently , when the oil is gradually heated in contact with air , and a flame is brought ...
... give off vapour will depend upon the boiling points of the more volatile hydrocarbons , and upon the amount of them con- tained in the oil . Consequently , when the oil is gradually heated in contact with air , and a flame is brought ...
Página 8
... give an explanation of Frankland and Duppa's products , which should not involve the assumption of evolution of hydrogen . That explana- tion I now give . On reference to Frankland and Duppa's paper just cited , it will be found that ...
... give an explanation of Frankland and Duppa's products , which should not involve the assumption of evolution of hydrogen . That explana- tion I now give . On reference to Frankland and Duppa's paper just cited , it will be found that ...
Página 12
... give for chrysophanic acid , viz . , C1 , H , O ,, cannot , according to the author of this paper , be the correct one , and this the less so , as no less than six different chemists have found for rhe formulæ of this substance ...
... give for chrysophanic acid , viz . , C1 , H , O ,, cannot , according to the author of this paper , be the correct one , and this the less so , as no less than six different chemists have found for rhe formulæ of this substance ...
Página 13
... gives a light yellow powder of great brilliancy , which becomes bright red when heated ; it is partially attacked by ... give some idea of this subject : -In Austria , from 416 to 580 cwts . , yielding from 3080 to 4336 lbs . of sugar ...
... gives a light yellow powder of great brilliancy , which becomes bright red when heated ; it is partially attacked by ... give some idea of this subject : -In Austria , from 416 to 580 cwts . , yielding from 3080 to 4336 lbs . of sugar ...
Página 23
... give interesting results for the study of some optical phenomena . The aluminates of lime , of baryta and lime , of lead and of bismuth , are proposed for flint - glass ; and the aluminates of mag- nesia and the silicates of magnesia ...
... give interesting results for the study of some optical phenomena . The aluminates of lime , of baryta and lime , of lead and of bismuth , are proposed for flint - glass ; and the aluminates of mag- nesia and the silicates of magnesia ...
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acetic acid action alcohol alizarine alkalies alluded alumina ammonia ammonium amount analysis aniline anthracene apparatus atoms barium benzol boiling bromine calcium carbonic acid caustic cent CHEMICAL chemists chloride colour compounds contains the following copper crystalline crystals decomposed decomposition dilute dissolved distilled electricity ether evaporated experiments filter fluid following original papers formula fusing glass heat hydrate hydrochloric acid hydrogen inch insoluble iodine iron lead length lime liquid madder magnesia magnetic manganese manufacture matter memoir mercury metal method microscope mineral mixture nitrate nitric acid nitrobenzol nitrogen number contains observed obtained oxalic acid oxide oxidised oxygen phosphate phosphoric acid platinum potash potassa potassium precipitate prepared present produced pure quantity reaction relating to chemistry salt sample sciences silicates silver soda sodium soil soluble solution substance sugar sulphate sulphide sulphuric acid temperature tion tube vapour volume washed weight wire yields zinc
Pasajes populares
Página 48 - Ganot's Elementary Treatise on Physics, Experimental and Applied, for the use of Colleges and Schools. Translated and edited by E. ATKINSON, FCS Seventh Edition, with 4 Coloured Plates and 758 Woodcuts. Post 8vo. 15.?.
Página 164 - ... the oxidation of the organic matter in sewage proceeds with extreme slowness, even when the sewage is mixed with a large volume of unpolluted water, and that it is impossible to say how far such water must flow before the sewage matter becomes thoroughly oxidised.
Página 32 - A university is not closely concerned with the applications of knowledge, until its general education branches into professional. Poetry and philosophy and science do indeed conspire to promote the material welfare of mankind; but science no more than poetry finds its best warrant in its utility. Truth and right are above utility in all realms of thought and action.
Página 101 - ... its curvature, and at last disappeared. The space was then occupied by a homogeneous fluid, which exhibited, when the pressure was suddenly diminished or the temperature slightly lowered, a peculiar appearance of moving or flickering striae throughout its entire mass. At temperatures above 88°, no apparent liquefaction of carbonic acid or separation into two distinct forms of matter could be effected, even when- a pressure of 300 or 400 atmospheres was applied. Nitrous oxide gave analogous results...
Página 112 - In this process its volume will steadily diminish as the pressure augments, and no sudden diminution of volume, without the application of external pressure will occur at any stage of it. When the full pressure has been applied, let the temperature be allowed to fall till the carbonic acid has reached the ordinary temperature of the atmosphere.
Página 271 - ... their having previously undergone fusion. " When the communication between the points positively and negatively electrified was made in air rarefied in the receiver of the airpump, the distance at which the discharge took place increased as the exhaustion was made, and when the atmosphere in the vessel supported only one-fourth of an inch of mercury in the barometrical gauge, the...
Página 32 - University would have scientific studies in school and college and professional school develop and discipline those powers of the mind by which science has been created and is daily nourished — the powers of observation, the inductive faculty, the sober imagination, the sincere and proportionate judgment.
Página 151 - Galileo. — THE PRIVATE LIFE OF GALILEO. Compiled principally from his Correspondence and that of his eldest daughter, Sister Maria Celeste, Nun in the Franciscan Convent of S.
Página 112 - ... the process would lead to the conjecture that liquefaction had actually taken place, although optical tests carefully applied failed at any time to discover the presence of a liquid in contact with a gas. But against this view it may be urged with great force, that the fact of additional pressure being always required for a further diminution of volume, is opposed to the known laws which hold in the change of bodies from the gaseous to the liquid state. Besides, the higher the temperature at...
Página 161 - ... of ordinary light. I have spoken to you also, I think, of the argument deducible from the contact electricity of metals. This, I now find, proves a limit to the dimensions of the molecules in metals quite corresponding to that established for transparent solids and liquids by the dynamics of dispersion. In experiments made about ten years ago, of which a slight sketch is published...