Chemical News and Journal of Industrial Science, Tomy 109-110Chemical news office., 1914 |
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Strona 13
... separation of the rare earths and of new compounds of the rare earths that seem likely to be of use for such purposes has for a long time occupied the attention of those interested in this branch of chemistry . The rare earth salts of ...
... separation of the rare earths and of new compounds of the rare earths that seem likely to be of use for such purposes has for a long time occupied the attention of those interested in this branch of chemistry . The rare earth salts of ...
Strona 14
... separation of these elements , no study would be complete without determining the behaviour of mixtures of the dimethyl phosphates . Several frac- tionations were conducted , and the method employed was that of precipitation by heat ...
... separation of these elements , no study would be complete without determining the behaviour of mixtures of the dimethyl phosphates . Several frac- tionations were conducted , and the method employed was that of precipitation by heat ...
Strona 15
... separation of the rare earths is vastly greater than practically all the methods given up to the present time . Lanthanum , cerium , praseodymium , neodymium are left at once in the mother - liquor . Samarium , europium , and gadolinium ...
... separation of the rare earths is vastly greater than practically all the methods given up to the present time . Lanthanum , cerium , praseodymium , neodymium are left at once in the mother - liquor . Samarium , europium , and gadolinium ...
Strona 25
... separation of electrons is not the result of a chemical change , such as oxidation . The experi- ments of Elster and Geitel and many other investigators have shown that the photo - electric discharge takes place from the surface of the ...
... separation of electrons is not the result of a chemical change , such as oxidation . The experi- ments of Elster and Geitel and many other investigators have shown that the photo - electric discharge takes place from the surface of the ...
Strona 63
... separation of metallic silver ; but the action of the iron upon the liquid soon ceased and the silver re - dissolved . Then for several weeks the iron lay at the bottom of the vessel , apparently unchanged and bright . It is interesting ...
... separation of metallic silver ; but the action of the iron upon the liquid soon ceased and the silver re - dissolved . Then for several weeks the iron lay at the bottom of the vessel , apparently unchanged and bright . It is interesting ...
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