Chemical News and Journal of Industrial Science, Volumer 63-64Chemical news office., 1891 |
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Side 7
... obtained by ultimate analysis it would be idle to speculate on the nature of this substance , remarkable for its fluorescence and brilliant colour . As , however , its properties seem to differ from those of any body known to occur in ...
... obtained by ultimate analysis it would be idle to speculate on the nature of this substance , remarkable for its fluorescence and brilliant colour . As , however , its properties seem to differ from those of any body known to occur in ...
Side 25
... obtained is dried and ignited . If the pre- cipitate of copper sulphide obtained in the acid solution by means of sulphuretted hydrogen is filtered off , and if the zinc sulphide thus obtained is free from cobalt and nickel sulphides ...
... obtained is dried and ignited . If the pre- cipitate of copper sulphide obtained in the acid solution by means of sulphuretted hydrogen is filtered off , and if the zinc sulphide thus obtained is free from cobalt and nickel sulphides ...
Side 36
... obtained is ready for titration . The standard liquid is prepared by dissolving a known quantity of pure zinc in 4 c.c. hydrochloric acid ; the quantity of zinc should be approximately equal to that which is supposed to be The solution ...
... obtained is ready for titration . The standard liquid is prepared by dissolving a known quantity of pure zinc in 4 c.c. hydrochloric acid ; the quantity of zinc should be approximately equal to that which is supposed to be The solution ...
Side 42
... obtained by Dr. Stevenson of Guy's Hospital , after an investigation instituted in con- sequence of two deaths which took place at the Leeds Forge , from inhaling uncarburetted water - gas containing 40 per cent of carbon monoxide . Dr ...
... obtained by Dr. Stevenson of Guy's Hospital , after an investigation instituted in con- sequence of two deaths which took place at the Leeds Forge , from inhaling uncarburetted water - gas containing 40 per cent of carbon monoxide . Dr ...
Side 46
... obtained a most curious formation of that substance , which would appear , when tested analy . tically , to be composed of graphitoidal silicon , constituted so as to form most perfect and well - developed crystals consisting of oblique ...
... obtained a most curious formation of that substance , which would appear , when tested analy . tically , to be composed of graphitoidal silicon , constituted so as to form most perfect and well - developed crystals consisting of oblique ...
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acetic acid action alcohol alkaline aluminium ammonia ammonium amount analysis antimony apparatus arabinose atomic weight band barium boiling boiling-point bromine calcium carbon cent Chem Chemical chemistry chemists chloride cobalt colour compounds containing copper crystalline crystals cyanide decomposed deposit determination didymium dilute dissolved distilled electricity elements ether ethyl evaporation excess experiments filtered filtrate flame flask gases give glass grms heat hydrate hydrochloric acid hydrogen iron liquid London m.grm magnesium manganese matter means mercury metal method mixture molecular molecules nickel nitrate nitric acid nitrogen observed obtained ordinary organic oxalate oxide oxygen paper phosphate phosphorescence phosphoric acid phosphorus platinum pole potassium precipitate present pressure produced Prof Professor pure quantity reaction residue salt sample silver Society soda sodium soluble solution specific gravity spectrum substance sulphate sulphide sulphocyanide sulphuric acid temperature theory tion tube vapour washed whilst xylose zinc
Populære avsnitt
Side 256 - The Metallurgy of Gold. A Practical Treatise on the Metallurgical Treatment of Gold-bearing Ores, including the Processes of Concentration and Chlorination, and the Assaying, Melting and Refining of Gold.
Side 69 - No English text-book at all approaches this in the COMPLETENESS with which the most modern views on the subject are dealt with. Professor Austen's volume will be INVALUABLE, not only to the student, but also to those whose knowledge of the art is far advanced.
Side 33 - The Art of Perfumery, and the Methods of Obtaining the Odours of Plants ; the Growth and general Flower Farm System of Raising Fragrant Herbs ; with Instructions for the Manufacture of Perfumes &c.
Side 74 - Committee of Revision and Publication of the Pharmacopoeia of the United States.
Side 4 - Coal-Gas, delivered in March, 1867, and printed in the ' Journal of Gas Lighting,' he considered that incandescent particles of carbon are not the source of light in gas and candle flames, but that the luminosity of these flames is due to radiations from dense, but transparent hydrocarbon vapours. As a further generalization from the...
Side 9 - SYSTEMATIC HANDBOOK OF VOLUMETRIC ANALYSIS ; or, the Quantitative Estimation, of Chemical Substances by Measure, applied to Liquids, Solids, and Gases.
Side 273 - There was no actual instruction ; I received from each individual every morning a report upon what he had done on the previous day, as well as his views on what he was engaged upon. I approved or made my criticisms.
Side 123 - ... reflected from a concave mirror through a foggy atmosphere. Green Phosphorescent Light of Molecular Impact. — At very high exhaustions the dark space becomes so large that it fills the tube. Careful scrutiny still shows the presence of the dark violet focus; and the part of the glass on which fall the rays diverging from this focus shows a sharply defined spot of greenish-yellow light.
Side 53 - A given space contains millions of millions of molecules in rapid movement in all directions, each molecule having millions of encounters in a second. In such a case, the length of the mean free path of the molecules is exceedingly small compared with the dimensions of the containing vessel, and the properties which constitute the ordinary gaseous state of matter, which depend upon constant collisions, are observed. What, then, are these molecules ? Take a single lone molecule in space.
Side 32 - WANKLYN.— MILK ANALYSIS ; a Practical Treatise on the Examination of Milk and its Derivatives, Cream, Butter, and Cheese. By JA Wanklyn, MRCS, &c.