Journal of the Chemical Society, Volume 95,Partie 2Chemical Society., 1909 "Titles of chemical papers in British and foreign journals" included in Quarterly journal, v. 1-12. |
Autres éditions - Tout afficher
Journal of the Chemical Society, Volume 75 Chemical Society (Great Britain) Affichage du livre entier - 1899 |
Journal of the Chemical Society, Volume 52 Chemical Society (Great Britain) Affichage du livre entier - 1887 |
Journal of the Chemical Society, Volume 55 Chemical Society (Great Britain) Affichage du livre entier - 1889 |
Expressions et termes fréquents
acetone action added alcoholic solution alkali ammonium amount anhydrous aqueous solution atom benzene boiling bromide c.c. N₂ moist carbon dioxide cent CH₂ CH₂ chloroform CO₂ cold colour colourless compound concentrated condensation containing cooling copper corr crystals decomposed decomposition density derivative diazonium diazotised dilute dissolved distilled disulphide dried ester ethereal solution ethyl acetate evaporated excess experiments extracted with ether formation formed fraction gave glacial acetic acid grams H₂O heated hydrochloric acid hydrogen chloride hydrolysis insoluble investigation iodide iodine isomeric light petroleum liquid melting point mercuric method methyl alcohol mixed mixture molecular molecule needles nitrate nitric nitric acid nitrogen obtained oxide phenyl potassium hydroxide precipitate prepared pressure pure reaction readily soluble requires residue rotation rotatory power salt separated sodium carbonate sodium hydroxide solid solvent sparingly soluble substance sulphate sulphide sulphuric acid Trans tube volume washed water-bath weight yellow yield
Fréquemment cités
Page 1310 - Kettering said in his address as retiring president of the American Association for the Advancement of Science in 1946: There is nothing in research more important than the time factor.
Page 1305 - Gibbs' peculiar merit that he, more than any other one man, introduced into the United States the German conception of research as a means of chemical instruction, a conception which is now taken as a matter of course without thought of its origin. Gibbs worked with small resources and no help from outside ; he was a reformer who never preached reform ; his students rarely suspected that they were doing anything out of the ordinary; but they had the utmost confidence in their master, and took it...
Page 1310 - In 1898, in his address as retiring president of the American Association for the Advancement of Science, Gibbs summed up his views as to the constitution of the complex acids. His presentation of the subject, however, can hardly be regarded as final. The problems involved are too complicated to be easily solved, and much future investigation is needed in order to determine the true character of these extraordinary substances. Gibbs was a pioneer, breaking pathways into a tangled wilderness ; but...
Page 2092 - ... unique matter; and it has no historical connection with that relic of the torments of classical thought, and therefore it affords no more indication of the unity of matter or of the compound character of our elements, than t.he law of Avogadro. or the law of specific heats, or even the conclusions of spectrum analysis.
Page 2087 - 4. The elements most widely distributed in nature have small atomic weights, and all such elements are distinguished by their characteristic behaviour. They are thus typical, and the lightest element, hydrogen, is therefore rightly chosen as the typical unit of mass. "5. The magnitude of the atomic weight determines the properties of the element, whence, in the study of compounds, regard is to be paid not only to the number and properties of the elements and their mutual action, but to the atomic...
Page 2078 - Speaking of the reforms desirable, he says that " for such reforms are required many strong realists ; classicists are only fit to be landowners, capitalists, civil servants, men of letters, critics, describing and discussing, but helping only indirectly the cause of popular needs. We could live at the present day without a Plato, but a double number of Newtons is required to discover the secrets of nature, and to bring life into harmony with the laws of nature.
Page 1309 - Gibbs' assistants. The genealogy of these inventions is perfectly clear. We now come to the remarkable series of researches upon the complex inorganic acids, which Gibbs began to publish in 1877, and continued well into the nineties. The ground had already been broken by others; silicotungstates, phosphotungstates, phosphomolybdates, etc., were fairly well known, but they were commonly regarded as exceptional compounds rather than as representatives of a very general class. In his first preliminary...
Page 1304 - ... The fewness of the pupils was a distinct advantage, for all worked together in one room, beginners and research students often side by side. The result was that they learned much from one another, and there were many discussions among them over the chemical problems of the day. The men were taught to think for themselves, laying thereby a foundation for professional success which was pretty substantial. The course of instruction had no definite term of years prescribed for it, and graduation...
Page 1304 - The final examination was usually oral, each man alone with his teacher, and was conducted in an easy conversational way which tended to establish the confidence of the candidate from the very beginning. In my own case, I remember that the questions covered a fairly broad range of chemical topics, and at the end of it, Dr. Gibbs drew me into a sort of discussion or argument with him over the then modern doctrine of valence.
Page 1304 - I now see that his purpose was not merely to ascertain what I had read on the subject, but what I really thought about it, if indeed I was entitled to think at all. Gibbs invariably treated his students, not as so many vessels into which knowledge was to be poured, but as reasonable beings, with definite purposes, to whom his help must be given. That help was never denied to any man who showed himself at all worthy of it. The research work in which the advanced students shared, and for which they...