Reactions of Methane with Iodine Activated by Radiative Neutron Capture

摘要

About 50 percent of the I128atoms formed by the I127(n,ggr;)I128reaction in gaseous mixtures of 0.2 mm of iodine and 400 mm of methane enter combination as methyl iodide, whereas much less than 1 percent of iodine atoms produced simultaneously by the photochemical dissociation of the iodine do so. By contrast, about 1 percent of the I128formed by the I127(n,ggr;)I128reaction in gaseous mixtures of iodine and ethyl iodide enters organic combination.The solubility of iodine in pure liquid methane is less than 10minus;10m/1 but as much as 3times;10minus;5m/1 may be dissolved when air has been allowed to condense in the methane. In such solutions I128from the I127(n,ggr;)I128reaction is able to enter organic combination as methyl iodide, ethyl iodide, and higher boiling material.