PHOTOCHEMICAL HYDROGEN IODIDE GAS GENERATION FROM IODOMETHANE AND 2-IODOPROPANE

The photochemistry of iodomethane has been widely studied, but quantit ative product yields for hydrogen iodide gas have not been reported. T he photochemistry of 2-iodopropane has not been as widely studied, but it has been reported that trace amounts of hydrogen iodide gas are fo rmed. However, quantitative product yields for hydrogen iodide gas hav e not been reported for this reactant either. In this paper, we report results for the percentage yields of hydrogen iodide gas, as obtained by potentiometry, when iodomethane or 2-iodomethane are photolyzed at 253.7 nm. For iodomethane, the statistical most likely estimator is 3 .8 X 10(-3)%, and the set maximum is 0.049%. For 2-iodopropane, the st atistical most likely estimator is 0.26%, and the set maximum is 3.68% . (C) 1998 Elsevier Science S.A. All rights reserved.