So we may conclude that
bromine vapor also does not undergo any allotropic condensation when
subjected to the influence of a silent discharge of electricity. The
fact that oxygen gas is capable of undergoing condensation while
chlorine and bromine are not is easily explained. The oxygen atom,
being divalent, is capable of uniting itself to two other atoms of
oxygen or other elements, and thus with oxygen forming ozone. The
atoms of chlorine and bromine, however, being only monovalent, have
all their affinity satisfied when they are united to a single other
atom of chlorine and bromine. It is not possible, therefore, that
condensation can take place if the atoms remain monovalent. Hydrogen
gas and iodine vapor are in a similar manner debarred from undergoing
condensation. Mr. Vernon, therefore, comes to the conclusion that it
is most improbable that any other element but oxygen will be found
capable of undergoing molecular condensation when in the gaseous state
and subjected to the silent discharge.
* * * * *
ESTIMATING CARBON IN ORGANIC SUBSTANCES.
BY J. MESSINGER.
This is an improvement on the author's method of two years ago.
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