Chemical News and Journal of Industrial Science, Volum 78Chemical news office, 1898 |
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Pàgina 5
... dilute sulphuric acid ( one part of acid to eight parts of water ) is run into the test - tube . When the re- action appears to be finished the test - tube is warmed and kept at the boiling point for a few moments . The level must now ...
... dilute sulphuric acid ( one part of acid to eight parts of water ) is run into the test - tube . When the re- action appears to be finished the test - tube is warmed and kept at the boiling point for a few moments . The level must now ...
Pàgina 6
... dilute acid must be separated by decantation , and the un- dissolved residue submitted to a fresh attack by a more concentrated acid . The two solutions must then be added together for titration . Having thus obtained the whole of the ...
... dilute acid must be separated by decantation , and the un- dissolved residue submitted to a fresh attack by a more concentrated acid . The two solutions must then be added together for titration . Having thus obtained the whole of the ...
Pàgina 9
... dilute sulphuric acid , appeared to contain a fairly dense hydrocarbon absorbed by fuming sulphuric acid , mixed possibly with a small quantity of hydrogen ; no saturated hydrocarbon could be detected . The solid deposit on the side of ...
... dilute sulphuric acid , appeared to contain a fairly dense hydrocarbon absorbed by fuming sulphuric acid , mixed possibly with a small quantity of hydrogen ; no saturated hydrocarbon could be detected . The solid deposit on the side of ...
Pàgina 15
... dilute solutions of acetic acid . On the other hand , the formation of the nickel compound is much less readily accelerated by heating , and is very readily soluble in dilute acetic acid . The process is based on these facts , but , as ...
... dilute solutions of acetic acid . On the other hand , the formation of the nickel compound is much less readily accelerated by heating , and is very readily soluble in dilute acetic acid . The process is based on these facts , but , as ...
Pàgina 16
... dilute acetic acid , and a greatly increased range of accuracy may fairly be expected to attend its use in case any circumstance should require very large excesses to be used . { CHEMICAL NEWS July 8 , 1898 . The process of intermixture ...
... dilute acetic acid , and a greatly increased range of accuracy may fairly be expected to attend its use in case any circumstance should require very large excesses to be used . { CHEMICAL NEWS July 8 , 1898 . The process of intermixture ...
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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.