Hydroxyl radical from the reaction between hypochlorite and hydrogen peroxide

Riccardo Castagna, Jason P. Eiserich, Madhu S. Budamagunta, Pierluigi Stipa, Carroll E Cross, Elisa Proietti, John C Voss, Lucedio Greci

Research output: Contribution to journalArticlepeer-review

17 Scopus citations

Abstract

We studied the reaction between hypochlorite anion (-OCl) and hydrogen peroxide (H2O2) by using spin-trapping agents such as 5,5-dimethyl-1-pyrroline-N-oxide (DMPO) and 5-diethoxy-phosphoryl-5-methyl-1-pyrroline-N-oxide (DEPMPO). The obtained data demonstrate that hydroxyl radical is produced in this reaction. Thus, -OCl and H2O2 could assume new relevance in environmental chemistry by representing a potential source of hydroxyl radicals and other oxidant species, such as HO-OCl and {radical dot}OCl radical.

Original languageEnglish (US)
Pages (from-to)6551-6554
Number of pages4
JournalAtmospheric Environment
Volume42
Issue number26
DOIs
StatePublished - Aug 2008

Keywords

  • EPR
  • Hydrogen peroxide
  • Hydroxyl radical
  • Singlet oxygen
  • Sodium hypochlorite

ASJC Scopus subject areas

  • Atmospheric Science
  • Environmental Science(all)
  • Pollution

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