Chemical News and Journal of Industrial Science, Volum 78Chemical news office, 1898 |
Des de l'interior del llibre
Resultats 1 - 5 de 64.
Pàgina 1
... evaporate quickly , and that portion which had separated in the liquid did not perceptibly diminish in amount . Towards the end , when almost all the air had boiled away , the last portions of the liquid evaporated slowly , and , when ...
... evaporate quickly , and that portion which had separated in the liquid did not perceptibly diminish in amount . Towards the end , when almost all the air had boiled away , the last portions of the liquid evaporated slowly , and , when ...
Pàgina 12
... evaporated and treated with an appropriate solvent . The results obtained from nine different phenols are described at length . The action of bromine on the nitrophenols was found to be less strong in the presence of bromide of ...
... evaporated and treated with an appropriate solvent . The results obtained from nine different phenols are described at length . The action of bromine on the nitrophenols was found to be less strong in the presence of bromide of ...
Pàgina 15
... evaporated and treated with caustic soda ( from Na ) , the small quan- tity of iron filtered off , and the iron precipitated as phosphate.t The precipitate was washed until the washing showed no turbidity with silver nitrate . The ...
... evaporated and treated with caustic soda ( from Na ) , the small quan- tity of iron filtered off , and the iron precipitated as phosphate.t The precipitate was washed until the washing showed no turbidity with silver nitrate . The ...
Pàgina 22
... evaporated is diminished , the diminution of the quantity evaporated is a measure of the diminution of pressure . To apply this in practice it is , of course , not sufficient simply to leave the pure liquid and the solution to evaporate ...
... evaporated is diminished , the diminution of the quantity evaporated is a measure of the diminution of pressure . To apply this in practice it is , of course , not sufficient simply to leave the pure liquid and the solution to evaporate ...
Pàgina 23
... evaporated in the two tubes . Amount evaporated in the solution . Number of molecules of dissolved substance . Number of molecules used to dissolve it . 23 plate with paraffin as in M. Becquerel's sxperiment . The whole was left in the ...
... evaporated in the two tubes . Amount evaporated in the solution . Number of molecules of dissolved substance . Number of molecules used to dissolve it . 23 plate with paraffin as in M. Becquerel's sxperiment . The whole was left in the ...
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acetic acid action alcohol alkaline aluminium ammonia ammonium amount analysis apparatus argon atomic weight B.Sc barium boiling bromine calcium carbide cent Chem Chemical Society Chemistry chloride chromic acid chromium colour compounds Constitution not published containing copper course crucible crystallised crystals decomposed decomposition determined dilute dissolved distilled electric elements estimation ether evaporated examined excess experiments ferric ferrous filtered filtrate flask formic acid gases gives glass grms heat hydrochloric acid hydrogen ignited iodide iodine iron Laboratory Lectures liquid London Lord Rayleigh M.grms manganese matter melted metals method mineral mixture molecule nickel nitrate nitric acid nitrogen obtained oxide oxidised oxygen paper permanganate phosphorus platinum potash potassium precipitate prepared present pressure produced Professor pure quantity reaction reduced residue rock salt samples saturated Science separation silicates soda sodium sodium carbonate soluble solution Students substance sulphate sulphide sulphuric acid temperature tion tube vanadium vapour volume wheat zirconium
Passatges populars
Pàgina 122 - FELKIN, HM— Technical Education in a Saxon Town. Published for the City and Guilds of London Institute for the Advancement of Technical Education.
Pàgina 24 - Second, Revised, and Enlarged Edition. With a Preface by JOHANNES WISLICENUS, Professor of Chemistry at the University of Leipzig; and an Appendix 'Stereo-chemistry among Inorganic Substances,' by ALFRED WERNER, Professor of Chemistry at the University of Zurich.
Pàgina 142 - Annalen on The Constitution and Metamorphoses of Chemical Compounds, and on the Chemical Nature of Carbon...
Pàgina 129 - England than a scarcity of fertilisers — it means a scarcity of food. It is impossible that such a sinful violation of the divine laws of Nature should for ever remain unpunished ; and the time will probably come for England sooner than for any other country, when, with all her wealth in gold, iron, and coal, she will be unable to buy one-thousandth part of the food which she has, during hundreds of years, thrown recklessly away.
Pàgina 135 - No incident in my scientific career is more widely known than the part I took many years ago in certain psychic researches. Thirty years have passed since I published an account o( experiments tending to show that outside our scientific knowledge there exists a Force exercised by intelligence differing from the ordinary intelligence common to mortals.
Pàgina 136 - I cross the boundary of the experimental evidence, and discern in that Matter — which we, in our ignorance of its latent powers, and notwithstanding our professed reverence for its Creator, have hitherto covered with opprobrium, — the promise and potency of all terrestrial life.
Pàgina 99 - Bibliography of the Metals of the Platinum Group, Platinum, Palladium, Iridium, Rhodium, Osmium, Ruthenium, 1748-1896.
Pàgina 271 - The Chairman proposed, in a few neat sentences, the toasts of the Queen and the Prince and Princess of Wales, and the other members of the Royal Family, which were pledged with enthusiasm. In proposing the Army, Navy, and Reserve Forces, Sir Henry said he was very glad to associate with it a soldier who was able, from the position which he held, to reply for all branches of the service, commanding as he did...
Pàgina 214 - ... of a coal of unknown origin, and 0.45 per cent of a coal from Peru. Still later examinations in this laboratory of about 100 rocks, chiefly igneous, covering nearly the whole continental territory of the United States, show, not only its general qualitative and quantitative distribution, but that it predominates in the less siliceous igneous rocks and is absent, or nearly so, in those high in silica.
Pàgina 127 - The virgin land has been rapidly absorbed, until at present there is no land left for wheat without reducing the area for maize, hay, and other necessary crops.