Flow Reactor Studies of Elementary Radical Reaction Rates
Abstract
The kinetic behavior of several elementary gas-phase reactions has been studied using the discharge-flow technique. Detection techniques include resonance fluorescence, laser-induced fluorescence and mass spectrometry. The rate of the reaction of H atoms with O2 to form HO2 has been determined over the temperature range 298 to 639K, with He, N2, and H2) as third bodies. The efficiency of CH30 formation in the reactions of F and OH radicals with CH3OH has been probed via product studies of the former reaction and via rate constant measurements of several isotopic variants of the latter reaction. Rate constants of the CH30 + NO reaction have been measured over a range of pressure and temperature. The products of both channels have been detected, establishing that atom transfer is the major channel at low pressure. Initial measurements suggest that the reaction of CH30 with H atoms is extremely fast, the reaction of CH30 with O atoms is significantly slower. Keywords: Chemical kinetics; Elementary reactions; Methoxy radicals; Discharge flow.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 05, 1988
- Accession Number
- ADA203126
Entities
People
- Michael F. Golde
Organizations
- University of Pittsburgh