Hydroxyl radical from the reaction between hypochlorite and hydrogen peroxide

We studied the reaction between hypochlorite anion ( −OCl) and hydrogen peroxide (H 2O 2) 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 i...

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Published inAtmospheric environment (1994) Vol. 42; no. 26; pp. 6551 - 6554
Main Authors Castagna, Riccardo, Eiserich, Jason P., Budamagunta, Madhu S., Stipa, Pierluigi, Cross, Carroll E., Proietti, Elisa, Voss, John C., Greci, Lucedio
Format Journal Article
LanguageEnglish
Published Oxford Elsevier Ltd 01.08.2008
Elsevier Science
Subjects
Applied sciences
EPR
Exact sciences and technology
Global environmental pollution
Hydrogen peroxide
Hydroxyl radical
Pollution
Singlet oxygen
Sodium hypochlorite
Sodium hypochlorite
Hydrogen peroxide
Singlet oxygen
EPR
Hydroxyl radical
Nitrone
Oxidant
Spin trapping
Free radical reaction
Hypochlorites
Reaction mechanism
Hydroxyl radicals
Environment
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Summary:We studied the reaction between hypochlorite anion ( −OCl) and hydrogen peroxide (H 2O 2) 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 H 2O 2 could assume new relevance in environmental chemistry by representing a potential source of hydroxyl radicals and other oxidant species, such as HO–OCl and OCl radical.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:1352-2310
1873-2844
DOI:10.1016/j.atmosenv.2008.04.029