Interaction of ozone and hydrogen peroxide in water: Implications for analysis of H 2 O 2 in air
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Interaction of ozone and hydrogen peroxide in water: Implications for analysis of H 2 O 2 in air

  • Author(s): Zika, R. G
  • Saltzman, E. S
  • et al.
Abstract

We have attempted to measure gaseous H2O2 in air using an aqueous trapping method. With continuous bubbling, H2O2 levels in the traps reached a plateau, indicating that a state of dynamic equilibrium involving H2O2 destruction was established. We attribute this behavior to the interaction of ozone and its decomposition products (OH, O3 ) with H2O2 in aqueous solution. This hypothesis was investigated by replacing the air stream with a mixture of N2, O2 and O3. The results of this experiment show that H O was both produced and destroyed in the traps. These results have led us to question the validity of techniques which employ aqueous traps to measure H2O2in air.

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