Kinetics of the Nitrogen Dioxide Catalyzed Oxidation of Nitric Oxide

摘要

The rate constant for the reverse reaction of the rate controlling step (NO+O2+NO2=NO2+NO3) of high pressure nitrogen pentoxide decomposition has been determined to be 6.58times;107cc2molemdash;2secmdash;1. This reaction was found to be the ratehyphen;controlling step in the nitrogen dixoide catalyzed oxidation of nitrosyl chloride to nitryl chloride. The equilibrium constant at 25deg; for the reaction ClNO+NO2=ClNO2+NO as evaluated from the kinetic data was found to be 1times;10mdash;4.