Chemical News and Journal of Industrial Science, Tomy 99-100Chemical news office., 1909 |
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Strona 4
... experiments , I was led to think whether it would not be possible to devise some better way of extracting these bodies from their native compounds , and especially from ordinary columbites and tantalites , so that as far as possible the ...
... experiments , I was led to think whether it would not be possible to devise some better way of extracting these bodies from their native compounds , and especially from ordinary columbites and tantalites , so that as far as possible the ...
Strona 7
... experiments I was unable to transform monobromo - benzene into phenetol , there is no doubt but that the alcoholates of sodium attack halogens in a benzene ring quite vigorously . In fact , if the action were not some- what too slow for ...
... experiments I was unable to transform monobromo - benzene into phenetol , there is no doubt but that the alcoholates of sodium attack halogens in a benzene ring quite vigorously . In fact , if the action were not some- what too slow for ...
Strona 10
... experiments , did not take place evenly all over the surface , but in patches , which had the appearance of a more or less regular pattern following the physical structure of the metal . This experiments has been frequently re- peated ...
... experiments , did not take place evenly all over the surface , but in patches , which had the appearance of a more or less regular pattern following the physical structure of the metal . This experiments has been frequently re- peated ...
Strona 16
... experiments . Another simple experiment was made in order to deter- mine the concentration of hydroxyl ions that must occur before a pink colour can be distinctly seen . 550 cc . of distilled water containing 1 cc . of phenolphthalein ...
... experiments . Another simple experiment was made in order to deter- mine the concentration of hydroxyl ions that must occur before a pink colour can be distinctly seen . 550 cc . of distilled water containing 1 cc . of phenolphthalein ...
Strona 19
... experiments has confirmed this view so far as applies to the compounds used , namely , pyridine , acetonitrile ... experiments on the decom- position of hydrogen peroxide the platinum stirrer was coated with wax to guard against any ...
... experiments has confirmed this view so far as applies to the compounds used , namely , pyridine , acetonitrile ... experiments on the decom- position of hydrogen peroxide the platinum stirrer was coated with wax to guard against any ...
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