Chemical News and Journal of Physical Science, Volumen71Chemical news office., 1895 |
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acetic acid acetylene action alcohol alkaline ammonia ammonium analysis apparatus argon atomic weight benzene boiling Boy Court bromine CARBOLIC ACID carbon Carries 100 grammes cent cerium Chemistry chemists chloride colour compounds containing copper Cryst crystallises cyanide decomposed decomposition determined dilute dissolved distillation electric elements ether ethyl experiments filter flame flask formed Furnaces gases glass grammes and turn heat helium hydrate hydrazin hydrocarbons hydrochloric acid hydrogen inches iodine iron Laboratory liquid LONDON Ludgate Hill magnesium Manufacturers marcasite MEDAL melting metals method mineral mixture molecular molecules nitrate nitric acid nitrogen nitrous NOTICES FROM FOREIGN obtained ordinary oxide oxygen pans paper PATENT Ph.D platinum post free Potash potassium precipitate present Price Prof pure pyrazolon pyrite quantity reaction reduced residue salt silver Society soda sodium sodium carbonate soluble solution Street substance sulphate sulphide sulphuric acid temperature tion tube vapour volume WILLIAM CROOKES yellow yttrium zinc
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Página 8 - Mendeleeff, which states that the properties of the elements are periodic functions of their atomic weights.
Página 268 - FELKIN, HM— Technical Education in a Saxon Town. Published for the City and Guilds of London Institute for the Advancement of Technical Education.
Página 89 - FRANKLAND.— MICRO-ORGANISMS IN WATER, THEIR SIGNIFICANCE, IDENTIFICATION, AND REMOVAL. Together with an Account of the Bacteriological Methods Involved in their Investigation. Specially Designed for the Use of those connected with the Sanitary Aspects of Water Supply. By Professor PERCY FRANKLAND, Ph.D., B.Sc.
Página 298 - The next step in the enquiry was, if possible, to exaggerate the discrepancy. One's instinct at first is to try to get rid of a discrepancy, but I believe that experience shows such an endeavour to be a mistake. What one ought to do is to magnify a small discrepancy with a view to finding out the explanation; and, as it appeared in the present case that the root of the discrepancy lay in the fact that part of the nitrogen prepared by the ammonia method was nitrogen out of ammonia, although the greater...
Página 198 - ... another — that is to say, in contact ; and does not seem to provide for any considerable increase of attraction when the area of contact is increased, whether by pressing the bodies together, or by shaping them to fit over a large area. But if we take into account the heterogeneous distribution of density essential to any molecular theory of matter, we readily see that it alone is sufficient to intensify the force of gravitation between two bodies placed extremely close to one another, or between...
Página 299 - ... of argon. The oxidation of nitrogen by that method goes on pretty quickly. If you put some ordinary air, or, better still, a mixture of air and oxygen, in a tube in which electric sparks are made to pass for a certain time, then in looking through the tube, you observe the well-known reddish-orange fumes of the oxides of nitrogen. I will not take up time in going through the experiment, but will merely exhibit a tube already prepared (image on screen). One can work more efficiently by employing...
Página 89 - Works by GS NEWTH, FIC, FCS, Demonstrator in the Royal College of Science, London. CHEMICAL LECTURE EXPERIMENTS. With 230 Illustrations. Crown 8vo. , 6s. CHEMICAL ANALYSIS, QUANTITATIVE AND QUALITATIVE. With 100 Illustrations. Crown 8vo., 6s. 6d. A TEXT-BOOK OF INORGANIC CHEMISTRY.
Página 89 - WATTS' DICTIONARY OF CHEMISTRY. Revised and entirely Rewritten by H. FORSTER MORLEY, MA, D.Sc., Fellow of, and lately...
Página 45 - That extremely minute particles of solid matter, whether obtained from organic or inorganic substances, when suspended in pure water, or in some other aqueous fluids, exhibit motions for which I am unable to account, and which from their irregularity and seeming independence resemble in a remarkable degree the less rapid motions of some of the simplest animalcules of infusions.
Página 198 - Trowhridge examined the effect of a temperature of — 80° C. on a permanent magnet, and came to the conclusion that the magnetic moment was diminished by about 50 per cent. Professor Ewing found that an increase of temperature of 150° C. above 10°, caused a reduction of the magnetic moment of a bar magnet by about 40 per cent., and that the magnet on cooling recovered its original state. This result would lead us to expect that if the same law is followed below the melting point of ice as Ewing...