Abstract
DURING the course of some work which I have been carrying out recently on the photo-synthesis of hydrogen chloride from its elements, rather curious results have been obtained. The light used to activate the chlorine-hydrogen mixture was filtered through varying quantities of chlorine gas with the object of studying the corresponding variations in the reaction velocity. It was found that a very small pressure of chlorine in the filter was able to reduce the actinic power of the light very greatly, but increases of the chlorine pressure produced less and less effect. The curve obtained by plotting actinic power against density of filtering medium was not, however, an exponential function, but more the shape of a rectangular hyperbola which for high densities tended to a definite ‘residual’ value for the actinic power. A tube of 45 cm. of chlorine at atmospheric pressure reduced the reaction velocity to 10 per cent, of its initial value.
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TAYLOR, W. Chlorine Gas Filters in Relation to Reaction Velocity. Nature 118, 697 (1926). https://doi.org/10.1038/118697a0
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DOI: https://doi.org/10.1038/118697a0
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