Kinetics of the Reactions of HCO with HCO and O₂

<jats:title>Abstract</jats:title><jats:p>The reactions</jats:p><jats:p><jats:chem-struct-wrap><jats:chem-struct><jats:graphic xmlns:xlink="http://www.w3.org/1999/xlink" mimetype="image/gif" position="anchor" specific-use="enlarged-web-image" xlink:href="graphic/must001.gif"><jats:alt-text>magnified image</jats:alt-text></jats:graphic></jats:chem-struct></jats:chem-struct-wrap></jats:p><jats:p>and</jats:p><jats:p><jats:chem-struct-wrap><jats:chem-struct><jats:graphic xmlns:xlink="http://www.w3.org/1999/xlink" mimetype="image/gif" position="anchor" specific-use="enlarged-web-image" xlink:href="graphic/must002.gif"><jats:alt-text>magnified image</jats:alt-text></jats:graphic></jats:chem-struct></jats:chem-struct-wrap></jats:p><jats:p>have been studied at room temperature in an isothermal flow reactor using helium in the pressure range 1 mbar ≤ <jats:italic>p</jats:italic> ≤ 5 mbar as carrier gas. The concentrations of HCO‐, HO<jats:sub>2</jats:sub>‐ and OH‐radicals were measured by laser magnetic resonance. The reaction F + H<jats:sub>2</jats:sub>CO → HF + HCO served as radical source. The experiments yielded the results</jats:p><jats:p><jats:chem-struct-wrap><jats:chem-struct><jats:graphic xmlns:xlink="http://www.w3.org/1999/xlink" mimetype="image/gif" position="anchor" specific-use="enlarged-web-image" xlink:href="graphic/must003.gif"><jats:alt-text>magnified image</jats:alt-text></jats:graphic></jats:chem-struct></jats:chem-struct-wrap></jats:p><jats:p>For the conditions used here HO<jats:sub>2</jats:sub> + CO are found to be the only products formed in the reaction of HCO‐radicals with O<jats:sub>2</jats:sub>.</jats:p>