Chemical News and Journal of Physical Science, Tom 109Chemical news office., 1914 |
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Strona 9
... Action of Chlorine on m - Iodoaniline and on m - Bromoaniline , " By HAMILTOM MCCOMBIE and PERCY JAMES WARD . : When m - iodoaniline is chlorinated in glacial acetic acid solution , 2 4 6 trichloro - 3 - iodoaniline is produced . Under ...
... Action of Chlorine on m - Iodoaniline and on m - Bromoaniline , " By HAMILTOM MCCOMBIE and PERCY JAMES WARD . : When m - iodoaniline is chlorinated in glacial acetic acid solution , 2 4 6 trichloro - 3 - iodoaniline is produced . Under ...
Strona 10
... action with the equation : — HN : COH NH2 135-150 ° + HN : CO above 190 ° HN : C.OH CO NH2 NH biuret NH HN : C OH ( enol ) . CO NH2 ( keto ) . CH I. The replacement of the labile hydrogen atom by an ethyl group destroys this tautomerism ...
... action with the equation : — HN : COH NH2 135-150 ° + HN : CO above 190 ° HN : C.OH CO NH2 NH biuret NH HN : C OH ( enol ) . CO NH2 ( keto ) . CH I. The replacement of the labile hydrogen atom by an ethyl group destroys this tautomerism ...
Strona 20
... Action of. pounds previously described by the present authors ; thus the numerical results ( varying from +50 to -25 ) of the determinations of rotatory power for the three lights in different solvents at all concentrations and in the ...
... Action of. pounds previously described by the present authors ; thus the numerical results ( varying from +50 to -25 ) of the determinations of rotatory power for the three lights in different solvents at all concentrations and in the ...
Strona 21
... action of pyridine . The most characteristic reaction of this dibromide is the ease with which it is converted by concentrated sul- phuric acid into a crystalline derivative , a study of the oxidation and reduction products of which has ...
... action of pyridine . The most characteristic reaction of this dibromide is the ease with which it is converted by concentrated sul- phuric acid into a crystalline derivative , a study of the oxidation and reduction products of which has ...
Strona 23
... action of terms of that of the hydrogen ion - Hydrochloric , 177 alkali in effecting the conversion of closely related reducing dichloroacetic , o'50 ; 3 - dibromopropionic , o 152 ; chloro i sugars . Glucosamine may thus be converted ...
... action of terms of that of the hydrogen ion - Hydrochloric , 177 alkali in effecting the conversion of closely related reducing dichloroacetic , o'50 ; 3 - dibromopropionic , o 152 ; chloro i sugars . Glucosamine may thus be converted ...
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Popularne fragmenty
Strona 63 - My strong impression is that the surface of the iron is oxidised, or that the superficial particles of the metal are in such relation to the oxygen of the electrolyte as to be equivalent to an oxidation; and that having thus their affinity for oxygen satisfied, and not being dissolved by the acid under the circumstances, there is no renewal of the metallic surface, no reiteration of the attraction of successive particles of the iron on the elements of successive portions of the electrolyte, and therefore...
Strona 161 - ... serves to correlate some properties of metals which at first sight would appear to bear no relation to each other; it leads, namely, to the fact that there is a parallelism between all the elastic properties of metals for which quantitative measurements have been made and the pressure — assumed to act on the solid phase, but not, or not to the same extent, on the liquid phase — which is required to lower the melting-point to ordinary temperature. This pressure is a function of the melting-point,...
Strona 180 - APPOINTMENTS REGISTER. — A Register of Fellows and Associates of the Institute of Chemistry who are available for appointments is kept at the Office of the Institute.
Strona 76 - INSTITUTE was held at the Institution of Civil Engineers, Great George Street, Westminster, on Thursday and Friday, May 7 and 8, 1914, Mr.
Strona 149 - NATURE [MARCH 19, 1914 that the metal acquires a negative charge during the catalytic combustion of gases in contact with it...
Strona 180 - Hostel. For Prospectus and Particulars apply to the DEAN (WILLIAM WRIGHT, MB, D.Sc., FRCS), who will be glad to make arrangements for any one wishing to see over the College and Hospital.
Strona 132 - Methods. Courses for Beginners, as well as for Advanced Students, in Physiology and Technology of Fermentations. Biological Analysts of Yeast. The Laboratory possesses a numerous collection of yeasts (brewers', distillers', wine, disease yeasts), moulds, and bacteria. Manual*: E. Chr. Haasen, " Practical Studies in Fermentation,
Strona 123 - Since the specific gravity of a substance is the weight of a unit volume of the substance compared, the susceptibilities may be converted into mass values by dividing the volume values...
Strona 195 - About 5CIU' of water was added, and then from 2cm> to 5cm3 of sulphuric acid. The water and excess of sulphuric acid were evaporated off by directing a small flame from the blast lamp nearly vertically downward upon the liquid. The evaporation required about fifteen minutes. The results obtained upon weighing the crucible and barium sulphate were satisfactory in three cases out of five, but in the other two cases there was loss. To prevent this a cone of fine platinum gauze was fitted into the mouth...