Chemical News and Journal of Physical Science, Tom 102Chemical news office., 1910 |
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Strona 12
... metals are very accurate , the apparatus required is simple , and the process is rapid . Phosphorus Pentasulphide ... metal : ( C6H5 ) 3C.CO.Cl + Ag ( C6H5 ) 3C + CO + AgCl . The analogous bromide does not behave in the same way , but ...
... metals are very accurate , the apparatus required is simple , and the process is rapid . Phosphorus Pentasulphide ... metal : ( C6H5 ) 3C.CO.Cl + Ag ( C6H5 ) 3C + CO + AgCl . The analogous bromide does not behave in the same way , but ...
Strona 13
... metal in a stream of bromine vapour . With pure materials the conditions essential for the satisfactory preparation of tantalum pentabromide may be briefly summarised : - : - 1. Tantalic oxide , previously strongly ignited , should be ...
... metal in a stream of bromine vapour . With pure materials the conditions essential for the satisfactory preparation of tantalum pentabromide may be briefly summarised : - : - 1. Tantalic oxide , previously strongly ignited , should be ...
Strona 21
... metal , and their life The mean content of the charge used at Ugine includes O'3 to 04 per cent carbon , o'1 to 03 ... metal is alloyed with another metal . It is shown that there is evidence in favour of this view , inasmuch as ...
... metal , and their life The mean content of the charge used at Ugine includes O'3 to 04 per cent carbon , o'1 to 03 ... metal is alloyed with another metal . It is shown that there is evidence in favour of this view , inasmuch as ...
Strona 22
... metal clamps , cooled by a water circulation . For protection against ex- cessive radiation , an insulated screen of a friable quality of carbon is placed round the central conductor . The vacuum- tight casing is a stout casting of gun ...
... metal clamps , cooled by a water circulation . For protection against ex- cessive radiation , an insulated screen of a friable quality of carbon is placed round the central conductor . The vacuum- tight casing is a stout casting of gun ...
Strona 46
... metal remained bright for several days when the apparatus was opened . This rusting was undoubtedly due to traces of slag in the metal , for on repeating the experiment , after thoroughly cleaning the iron , two spots of rust formed ...
... metal remained bright for several days when the apparatus was opened . This rusting was undoubtedly due to traces of slag in the metal , for on repeating the experiment , after thoroughly cleaning the iron , two spots of rust formed ...
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Strona 147 - FELKIN, HM— Technical Education in a Saxon Town. Published for the City and Guilds of London Institute for the Advancement of Technical Education.
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Strona 135 - As stated in the charter, it was intended "to give the highest specialized instruction and to provide the fullest equipment for the most advanced training and research in various branches of science, especially in its application to industry.
Strona 268 - ... interstate commerce if they do not contain more than 300 milligrams of tin per kilogram, or salts of tin equivalent thereto. When the amount of tin, or an equivalent amount of salts of tin, is greater than 300 milligrams per kilogram, entry of such canned goods packed subsequently to January 1, 1911, will be refused, and if found in interstate commerce proper action will be taken. It is the opinion of the board that the trade will experience little hardship in adjusting itself to this condition,...
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Strona 256 - Scholarship is not to facilitate ordinary collegiate studies, but to enable students, who have passed through a college curriculum or have been trained in industrial establishments, to conduct researches in the metallurgy of iron and steel and allied subjects, with the view of aiding its advance or its application to industry.
Strona 228 - The solution of rosin soap can then be run off, treated with acid, the rosin collected in any manner desired, dried, and weighed. A second washing of the soap with petroleum spirit is hardly necessary, as very little remains...
Strona 144 - Science (B.Sc.) and Doctor of Science (D.Sc.). Candidates for Degrees in Science, if not graduates (by examination) in Arts in one of the Universities of the United Kingdom or in a Colonial or Foreign University recognised for the purpose by the University Court, must pass a preliminary examination in (i) English ; (2) Latin, Greek, French, or German ; (3) Mathematics; (4) One of ' the languages Latin, Greek, French, German, Italian, not already taken under (2), or Dynamics. In the case of a student...
Strona 181 - By means of the special pipette introduce carefully, drop by drop, into one of the 200 cc cylinders, exactly 16 mm. depth of the ink to be tested. The ink should be previously tested to determine a proper solvent for both base and dye. Alcohol is generally the solvent to use for rosin inks. It may be necessary to use other solvents, such as gasoline (bp, 50° to 60°), ether, benzol, etc.