Chemical News and Journal of Physical Science, Tom 109Chemical news office., 1914 |
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Strona 14
... temperature maintained between 25 ° and 30 ° . The large quantities of hydrochloric acid gas and methyl chloride which were evolved passed off through a side tube . At the completion of the reaction , which re- quired from an hour to an ...
... temperature maintained between 25 ° and 30 ° . The large quantities of hydrochloric acid gas and methyl chloride which were evolved passed off through a side tube . At the completion of the reaction , which re- quired from an hour to an ...
Strona 14
... temperature of the bath gradually raised , the solu- tion being constantly stirred . As soon as a fair amount of precipitate had formed , the liquid was filtered off and the precipitate retained as fraction I. The filtrate was again ...
... temperature of the bath gradually raised , the solu- tion being constantly stirred . As soon as a fair amount of precipitate had formed , the liquid was filtered off and the precipitate retained as fraction I. The filtrate was again ...
Strona 19
... temperatures above 150 ° or at various con- centrations in solvents such as pyridine , benzene , or carbon disulphide ... temperature , but also on solution in various solvents . A " characteristic diagram " for d sec . - octyl acetate ...
... temperatures above 150 ° or at various con- centrations in solvents such as pyridine , benzene , or carbon disulphide ... temperature , but also on solution in various solvents . A " characteristic diagram " for d sec . - octyl acetate ...
Strona 22
... temperatures , and the temperature coefficients determined . The work was undertaken to investigate the colours developed on adding tetranitromethane to various substances . Ostromisslensky ( Journ . Prakt . Chem . , 1911 , [ 2 ] ...
... temperatures , and the temperature coefficients determined . The work was undertaken to investigate the colours developed on adding tetranitromethane to various substances . Ostromisslensky ( Journ . Prakt . Chem . , 1911 , [ 2 ] ...
Strona 29
New Steam Generator . The variation in the maximum temperature was attri . buted to the occasional inflow of cold water into ... Temperature in bath , 100 ° C. " " 99 120 ° C. 138-141 ° C. CHEMICAL NEWS , Jan. 16 , 1914 vortex formations ...
New Steam Generator . The variation in the maximum temperature was attri . buted to the occasional inflow of cold water into ... Temperature in bath , 100 ° C. " " 99 120 ° C. 138-141 ° C. CHEMICAL NEWS , Jan. 16 , 1914 vortex formations ...
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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...