Kinetics of Hydrogen Halides in Shock Waves. III. The Reactions Cl + HCl→Cl2 + H and Cl + Cl2→3Cl

Publisher Website
Google Scholar
Abstract
The decomposition of HCl via the chlorine exchange reaction Cl + HCl⇆Cl2 + H was studied in the shock tube by monitoring the infrared emission from the fundamental band of HCl. Mixtures of 0.2% HCl, 5% Cl2 (balance Ar) and 2% HCl, 5% Cl2 (balance Ar) were employed. Over the 3500°–5200°K temperature range of the experiments, the added Cl2 dissociated rapidly behind the shock waves; the HCl reaction mechanism thus proceeded in a large excess of Cl atoms and was dominated by the chlorine exchange reaction. We found the rate constant for the chlorine exchange reaction to be consistent with the low‐temperature value of Klein and Wolfsberg. The study also yielded the efficiency of Cl atoms in decomposing Cl2. Compared to Ar, Cl was found to be 10 times more efficient.

This publication has 3 references indexed in Scilit: