Chemical News and Journal of Industrial Science, Volum 63Chemical news office, 1891 |
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Side 2
... added to the nitric acid , then the maximum E.M. F. is reached at once . III . If the conditions , namely , increase of temperature , of impurity , and of concentration of acid , are such as Griffiths , " Brit . Assoc . Report , " 1890 ...
... added to the nitric acid , then the maximum E.M. F. is reached at once . III . If the conditions , namely , increase of temperature , of impurity , and of concentration of acid , are such as Griffiths , " Brit . Assoc . Report , " 1890 ...
Side 3
... added which would tend so destroy the nitrous acid as fast as it may be formed , then the rise of E.M.F. is extremely slow , being dependent upon the number of molecular impacts of the nitrous acid upon the surface of the metal . Thus ...
... added which would tend so destroy the nitrous acid as fast as it may be formed , then the rise of E.M.F. is extremely slow , being dependent upon the number of molecular impacts of the nitrous acid upon the surface of the metal . Thus ...
Side 5
... added 6000 c.c. methyl alcohol . The solution was after some time drained off , and the sugar treated with an additional 4000 c.c. of methyl alcohol . From the 10,000 c.c. alcohol added , about 7400 c.c. were recovered . This solution ...
... added 6000 c.c. methyl alcohol . The solution was after some time drained off , and the sugar treated with an additional 4000 c.c. of methyl alcohol . From the 10,000 c.c. alcohol added , about 7400 c.c. were recovered . This solution ...
Side 6
... added . Ethyl alcohol was then added and the solution was heated on a water - bath . This treatment was repeated until all of the raffinosate of lead had been precipitated . This precipitate was then filtered out , suspended in water ...
... added . Ethyl alcohol was then added and the solution was heated on a water - bath . This treatment was repeated until all of the raffinosate of lead had been precipitated . This precipitate was then filtered out , suspended in water ...
Side 7
... added that mercury , cadmium , bismuth , and lead deposit from sulphocyanide solutions . With lead , a behavior analogous to that noted with manganese was observed . Approximate quantitative separations were made in several cases , but ...
... added that mercury , cadmium , bismuth , and lead deposit from sulphocyanide solutions . With lead , a behavior analogous to that noted with manganese was observed . Approximate quantitative separations were made in several cases , but ...
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Populære avsnitt
Side 252 - THE METALLURGY OF GOLD. A Practical Treatise on the Metallurgical Treatment of Gold-bearing Ores. Including the Assaying, Melting, and Refining of Gold. By M. EISSLER, M, Inst. MM Fifth Edition, Enlarged. With over 300 Illustrations and numerous Folding Plates. Medium 8vo, cloth .... Net 21 /O " This book thoroughly deserves its title of a
Side 161 - Here hills and vales, the woodland and the plain, Here earth and water, seem to strive again ; Not chaos-like together crushed and bruised, But as the world harmoniously confused: Where order in variety we see, And where, though all things differ, all agree.
Side 63 - 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 68 - Committee of Revision and Publication of the Pharmacopoeia of the United States.
Side 270 - The last-mentioned was generally received as a popular work, which, to those who study it more closely, it really is not, or was not at the time when it appeared. Mistakes were made, not in the facts, but in the deductions about organic reactions ; we were the first pioneers in unknown regions, and the difficulties in the way of keeping on the right path were sometimes insuperable. Now, when the paths of research are beaten roads, it is a much easier matter ; but all the wonderful discoveries which...
Side 269 - 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 45 - 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 117 - ... 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 155 - JOHN HENRY GARRETT, MD Licentiate in Sanitary Science and Diplomate in Public Health, Universities of Durham and Cambridge, &c. THE ACTION OF WATER ON LEAD; being an inquiry into the Cause and Mode of the Action and its Prevention. Crown 8vo, 4s. 6d.