HIGH TEMPERATURE REACTION RATE FOR H plus O2 equals OH plus O AND OH plus H2 equals H2O plus H.

Article abstract of DOI:10.1002/bbpc.19850890218

Shock heating together with atomic resonance absorption spectrometry (ARAS) was used to record simultaneously H- and O-atom concentration profiles in the post-shock region behind reflected shocks. The dissociation of N//2O together with the reaction O plus H//2 equals OH plus H was used as a source of H and OH for the reactions H plus O//2 equals OH plus O and OH plus H//2 equals H//2O plus H. The test gas mixtures consisted of argon with relative concentrations of a few ppm N//2O and 100 to 500 ppm H//2 and O//2. The experiments were conducted in the temperature range of 1700 to 2500 K at total densities of 6 multiplied by (times) 10** minus **6 to 1. 3 multiplied by (times) 10** minus **5 mol cm** minus **3. For temperatures below 2500 K nearly complete agreement with the value for the rate coefficient of reaction R1 as recommended by D. L. Baulch was obtained.