Mass Spectrometric Investigation of the Reaction between Oxygen Atoms and Carbonyl Sulfide

The reaction of oxygen atoms and carbonyl sulfide has been investigated in conjunction with a fast flow system. The following predominant reactions have been found to occur in the early stage, magnified image The rate constant at room temperature associated with the first reaction was determined to be k 1 = 0.91 ± 0.14 · 10 −14 cc/molec. sec and that of the second reaction was estimated as k 5 = 4.3 · 10 −12 cc/molec. sec. The implications of the chemistry of SO radicals are discussed.