The branching brtio n the thermal decomposition of H_2CO

摘要

The thermal decomposition fo H_2CO has been investigated in reflected shock-wave experiments at temerpatures between 2004 and 2367K.The quantitative temeproal fromaiton of H atoms in the reactions, (la) H_2CO + Kr ->HCO + H + Kr and HCO + Kr ->CO + H + Kr,were measrued by the atomic resonance absorption spectrometric (ARAS) technique .The product HCO radicals instantaneously decompose giving a second H atom.The experiments were caried out uner conditins where secondary reaction perturbations were negligible.