Journal of the Chemical Society, Volumen77Chemical Society., 1900 "Titles of chemical papers in British and foreign journals" included in Quarterly journal, v. 1-12. |
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Resultados 1-5 de 100
Página 5
... tube provided with a piston , which , by its regulated withdrawal , could be made to suck into the tube a measured quantity of the water used for dilution . A sketch of the whole apparatus is given in Fig . 1 . The principal tube A was ...
... tube provided with a piston , which , by its regulated withdrawal , could be made to suck into the tube a measured quantity of the water used for dilution . A sketch of the whole apparatus is given in Fig . 1 . The principal tube A was ...
Página 6
... tube T was introduced into one of the holes in the stopper so that connection might afterwards be formed FIG . 1 ... tube T. The measuring tube N , which , together with the connection tube , had been previously completely filled with ...
... tube T was introduced into one of the holes in the stopper so that connection might afterwards be formed FIG . 1 ... tube T. The measuring tube N , which , together with the connection tube , had been previously completely filled with ...
Página 7
... tube and bent glass tube were chosen of narrow bore so as to prevent mixing of the liquids when the pinch - cock was open . The whole apparatus was now placed in the upright position in a thermostat containing water at 18 ° , at which ...
... tube and bent glass tube were chosen of narrow bore so as to prevent mixing of the liquids when the pinch - cock was open . The whole apparatus was now placed in the upright position in a thermostat containing water at 18 ° , at which ...
Página 8
... tube and a long , narrow inlet tube for air . In this bottle , the water suffered no deterioration in quality even when kept for several days . It is essential , if weak acids are to be investigated , that the conductivity of the water ...
... tube and a long , narrow inlet tube for air . In this bottle , the water suffered no deterioration in quality even when kept for several days . It is essential , if weak acids are to be investigated , that the conductivity of the water ...
Página 22
... tube over mercury , the tube became warm and the gases condensed to a cloud which soon settled on the inner wall of the vessel as a microcrystalline , very voluminous , woolly mass . In order to obtain it in larger quantity and free ...
... tube over mercury , the tube became warm and the gases condensed to a cloud which soon settled on the inner wall of the vessel as a microcrystalline , very voluminous , woolly mass . In order to obtain it in larger quantity and free ...
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Términos y frases comunes
absorption acetone action alcohol alkali alkyl amarine ammonia ammonium amount analysis aniline aqueous solution atom barium barium chlorate benzene boiling bromine Bunsen c.c. moist nitrogen camphor carbon dioxide cent CH₂ chemical chemistry chlorate chloroform CO₂ CO₂H colour colourless compound containing cooling crystallised crystals decomposed decomposition density derivatives dilute dissolved distilled dried ester ether ethyl evaporated excess experiments formation formed formula gave glacial acetic acid grams H₂O heated hydrochloric acid hydrogen hydrogen sulphide hydrolysis hydroxide hydroximidosulphate hydroxylamine insoluble iodide iodine isoamarine isomeric light petroleum liquid melting point mercury method Meyer mixture molecular needles nitrate nitric acid nitrogen nitrogen chloride numbers obtained oxide oxygen phenylhydrazine pilocarpine potassium potassium hydroxide precipitate prepared pressure pure reaction refractive requires residue rotation salt silver small quantity sodium soluble Spectrum continuous substance sulphate sulphide sulphur dioxide sulphuric acid temperature tion Trans tube whilst yellow yield
Pasajes populares
Página 566 - To decompose the metals, then, to reform them, to change them from one to another, and to realise the once absurd notion of transmutation are the problems now given to the chemist for solution.
Página 567 - System," and although he must have heard of the electrolytic decomposition of water by Nicholson and Carlisle in 1800, nothing apparently could shake his conviction of the essential and inherent truth of the conception of phlogiston. The last of his published writings was his memoir on " The Doctrine of Phlogiston established, and that of the Composition of Water refuted.
Página 566 - Wollaston ; lastly, glance but at the new, the extraordinary powers which the chemist of our own nation put in action so successfully for the reduction of the alkalies and earths, and you will then no longer doubt that powers still progressive and advanced may exist and put at some favourable moment the bases of the metals in our hands...
Página 527 - At the moment I am engaged in a research with Kirchhoff which gives us sleepless nights. Kirchhoff has made a most beautiful and most unexpected discovery : he has found out the cause of the dark lines in the solar spectrum, and has been able both to strengthen these lines artificially in the solar spectrum and to cause their appearance in a continuous spectrum of a flame, their positions being identical with those of the Fraunhofer's lines.
Página 520 - ... whilst at the same zenith distance the sun's chemical brightness is only 36'6 times as great. Hence the value of this light as a source of the chemically active rays for photographic purposes becomes at once apparent.
Página 576 - That he may have plenty of his ingredients, let him use 20 times as much quicksilver, 20 times as much platina, and in short of anything else he pleases to use : neither he nor I can make a single grain. Pray be careful in trying what it is he makes, for the mistake must happen by not trying it rightly. My reason for not saying where it was found was that I might make some advantage of it as I have a right to do.
Página 567 - le plus riche de tous les savans; et probablement aussi, le plus savant de tous les riches.
Página 181 - After consulting some of the most eminent chemical philosophers in this country, it has been judged most proper to suggest a name founded upon one of its obvious and characteristic properties — its colour, and to call it Chlorine, or Chloric gas.* Should it hereafter be discovered to be compound, and even to contain oxygene, this name can imply no error, and cannot necessarily require a change.
Página 566 - I see plainly," he once said, " that all these new-fangled associations will finally dismantle the Royal Society, and not leave the old lady a rag to cover her." And the frown of the masterful old President meant social ostracism to all who chose to disregard it. But, unlike his predecessor, Sir John Pringle, who, on a certain memorable occasion, confessed to George III. that he was unable to reverse the laws and operations of nature, and was then told he had better resign, Banks, if he could not...
Página 564 - The voltaic battery was an alarm bell to experimenters in every part of Europe ; and it served no less for demonstrating new properties in electricity, and for establishing the laws of this science, than as an instrument of discovery in other branches of knowledge ; exhibiting relations between subjects before apparently without connection, and serving as a bond of unity between chemical and physical philosophy.