the sulfuric acid-malic acid complex. The inhibitor thus decreases the concentration of the complex and thereby slows down the reaction.The explanation for the maximum appears to be the same as for the other acids mentioned i. e., there exists an equilibrium, H2SO4 SO3 +
Photo-reaction of Chlorine and Bromotrichloromethane 1455 and its chance of being deactivated would be greater the higher the pressure. In this way the results of the gas analysis could be qualitatively explained.If this suggestion is correct then a correction is needed in our calculation of the rate constant K from dp/dt, for it is seen that the constant of proportionality would be different at different pressures. This effect, however, would not be sufficient to affect the general character of our results, nor the conclusions which one can draw from them.
Preliminary Results on Divinyl EtherA series of experiments over a range of pressures from 0.5 to .150 mm. has been made with divinyl ether. The log K-log p curves are very similar to those of diethyl ether, with even more pronounced upward curvature. Acknowledgment.-We are grateful to the Milton Fund of Harvard University for a grant which made it possible to complete the experimental work reported in this paper.
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