No abstract

The gas phase reaction of OH radicals with hydrogen iodide (HI) has been studied using a Laser Photolysis-Resonance Fluorescence (LP-RF) apparatus, recently developed in our group.The measured rate constant at 298 K was (2.7 2 0.2) X lo-" cm3 molecule-' s-'. This rate constant is compared with the ones of the reactions OH + HC1 and OH + HBr. The role of the reaction OH + HI in marine tropospheric chemistry is discussed.In addition, the LP-RF apparatus was tested and validated by measuring the following rate constants (in cm3 molecule-' s-' units): k(OH + HN03) = (1.31 2 0.06) x at P = 27 and 50 Torr of argon and k(OH + C3H8) = (1.22 ? 0.08) x lo-''. These rate constants are in very good agreement with the literature data.

No abstract

No abstract

No abstract