Chemical News and Journal of Physical Science, Tom 103Chemical news office., 1911 |
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Strona 3
... light on the subject , but further tests are usually dispensed with , as they are expensive , tedious , and liable to be unsatisfactory . Luckily , to prove a change in the oil , it is not necessary to determine its constitution ; any ...
... light on the subject , but further tests are usually dispensed with , as they are expensive , tedious , and liable to be unsatisfactory . Luckily , to prove a change in the oil , it is not necessary to determine its constitution ; any ...
Strona 6
... light accelerates the bromination of the saturated compounds , giving rise to an undue proportion of substituted bromine ; and the presence of the smallest amount of moisture is even more effective in accomplishing the same result . The ...
... light accelerates the bromination of the saturated compounds , giving rise to an undue proportion of substituted bromine ; and the presence of the smallest amount of moisture is even more effective in accomplishing the same result . The ...
Strona 9
... light from an incandescent mantle or electric filament can be made to give a field of light with a perfectly even area of illumination . A silvered glass cylinder several inches long is mounted in front of the light , which being ...
... light from an incandescent mantle or electric filament can be made to give a field of light with a perfectly even area of illumination . A silvered glass cylinder several inches long is mounted in front of the light , which being ...
Strona 12
... light a bright phosphorescence of short duration appears , and its spectrum is almost identical with the fluorescence spectrum . If the exposure to the source of light is continued it will be seen that fine bands are superposed on the ...
... light a bright phosphorescence of short duration appears , and its spectrum is almost identical with the fluorescence spectrum . If the exposure to the source of light is continued it will be seen that fine bands are superposed on the ...
Strona 27
... light of the evidence that is now available , no change in this point is possible at this time , It is well to bear in mind , however , that the standard gas scale is not yet definitely and certainly fixed to an accuracy of 1 ° at 450 ...
... light of the evidence that is now available , no change in this point is possible at this time , It is well to bear in mind , however , that the standard gas scale is not yet definitely and certainly fixed to an accuracy of 1 ° at 450 ...
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