Chemical News and Journal of Physical Science, Tom 101Chemical news office., 1910 |
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Strona 23
... known in organic chemistry . - New Generai Methods of Synthesising Aromatic Aldehydes . - A . Guyot . The a- - 8 diketonic esters , x - co - co - CO2R , can fix a molecule of a phenol , carbide , or tertiary aromatic amine to the ...
... known in organic chemistry . - New Generai Methods of Synthesising Aromatic Aldehydes . - A . Guyot . The a- - 8 diketonic esters , x - co - co - CO2R , can fix a molecule of a phenol , carbide , or tertiary aromatic amine to the ...
Strona 25
... known at the time as braunstein , in Swedish Brun - sten , or magnesia nigra . Wishing to ascer- tain the action upon this substance of all the common acids , he treated it with hydrochloric among others , and thus first prepared ...
... known at the time as braunstein , in Swedish Brun - sten , or magnesia nigra . Wishing to ascer- tain the action upon this substance of all the common acids , he treated it with hydrochloric among others , and thus first prepared ...
Strona 31
... known processes for the separation of cerium from lanthanum and didymium is that of Mosander ( Fourn . Prakt . Chem . , xxx . , 267 ) . This process consists in passing chlorine gas into a mixture of the hydroxides suspended in a ...
... known processes for the separation of cerium from lanthanum and didymium is that of Mosander ( Fourn . Prakt . Chem . , xxx . , 267 ) . This process consists in passing chlorine gas into a mixture of the hydroxides suspended in a ...
Strona 35
... known that the salts of trivalent titanium give with oxalic acid in aqueous solution a yellow coloration . Pyrocatechin also gives an orange . yellow coloration with titanium trichloride , and this colour precipitate is obtained ...
... known that the salts of trivalent titanium give with oxalic acid in aqueous solution a yellow coloration . Pyrocatechin also gives an orange . yellow coloration with titanium trichloride , and this colour precipitate is obtained ...
Strona 37
... known re , specting the properties of chlorine , and thought that his ex- periments proved that it was a compound of oxygen and hydrochloric acid . He based this conclusion upon two facts ; the first , that when manganese dioxide is ...
... known re , specting the properties of chlorine , and thought that his ex- periments proved that it was a compound of oxygen and hydrochloric acid . He based this conclusion upon two facts ; the first , that when manganese dioxide is ...
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Strona 225 - The stars shall fade away, the sun himself Grow dim with age, and Nature sink in years, But thou shalt flourish in immortal youth, Unhurt amidst the war of elements, The wreck of matter, and the crush of worlds.
Strona 209 - Works by GS NEWTH, FIC, FCS, Demonstrator in the Royal College of Science, London. CHEMICAL LECTURE EXPERIMENTS. With 230 Illustrations. Crown 8vo. , 6s. CHEMICAL ANALYSIS, QUANTITATIVE AND QUALITATIVE. With loo Illustrations. Crown 8vo., 6s. 6d.
Strona 168 - ... turns red and not blue. An interesting question remains behind. To what kind of small particles — dispersing short waves in preference — is the heavenly azure due ? That small particles of saline or other solid matter, including organic germs, play a part, cannot be doubted, and to them may be attributed much of the bluish haze by which the moderately distant landscape is often suffused. But it seems certain that the very molecules of air themselves are competent to scatter a blue light not...
Strona 71 - To call a body which is not known to contain oxygen and which cannot contain muriatic acid, oxymuriatic acid, is contrary to the principles of that nomenclature in which it is adopted ; and an alteration of it seems necessary to assist the progress of discussion, and to diffuse just ideas on the subject.
Strona 71 - I admitted ammoniacal gas over mercury to a small quantity of the liquor of Libavius; it was absorbed with great heat, and no gas was generated; a solid result was obtained, which was of a dull white colour ; some of it was heated, to ascertain if it contained oxide of tin ; but the whole volatilized, producing dense pungent fumes. Another experiment of the same kind, made with great care, and in which ammonia was used in great excess, proved that the liquor of Libavius cannot be decompounded by...
Strona 66 - A TREATISE on CHEMISTRY. By Sir HE ROSCOE, FRS, and the late C. SCHORLEMMER, FRS Completely revised by Sir HE ROSCOE, assisted by Drs. HG COLMAN and A. HARDEN. 8vo. Vol. I. The Non-Metallic Elements.
Strona 71 - ... that the azote of the ammonia was unchanged in the operation. Some authors continue to write and speak with scepticism on the subject, and demand stronger evidence of chlorine being undecompounded. These evidences it is impossible to give. It has resisted all attempts at decomposition. In this respect, it agrees with gold, and silver, and hydrogen, and oxygen. Persons may doubt, whether these are elementary bodies ; but it is not philosophical to doubt, whether they have not been resolved into...
Strona 168 - ... few per cent.* It has been pointed out by Dr. Schuster that the introduction of the raised number into the formula almost exactly accounts for the degree of atmospheric transparency observed at high elevations in the United States, apparently justifying to the full the inference that the normal blue of the sky is due to molecular scattering. But. although there is no reason to anticipate that this general conclusion will be upset, it should not be overlooked that a molecule, especially a diatomic...
Strona 209 - BY SIR WILLIAM RAMSAY, KCB, FRS, D.Sc. STOICHIOMETRY. By SYDNEY YOUNG, D.Sc., FRS, Professor of Chemistry in the University of Dublin ; together with an INTRODUCTION TO THE STUDY OF PHYSICAL CHEMISTRY, by Sir WILLIAM RAMSAY, KCB, FRS, Editor of the Series.