Kinetics of the Reactions of BrO Radicals with C10 and BrO, and the Chemiluminescent Reactions of Fluorine with Dimethyl Sulfide

摘要

The chemistry of BrO radicals has been investigated using the technique of discharge flow coupled to mass spectrometry. The reactions of BrO + BrO and BrO + ClO are rate determining steps in two catalytic destruction cycles for ozone. These should be important in the lower stratosphere and in the recently discovered ozone 'hole' in Antarctica. Three product channels have been identified and quantified as a function of temperature. These measurements have shown that the BrO + ClO reaction plays a major role in polar stratospheric ozone chemistry. The reaction of F2 + dimethyl sulfide was also undertaken to understand the F2-induced chemiluminescence detector for gas chromatography developed in their laboratory.