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Scavenging of OH Radicals Produced in the Sonolysis of Water
Abstract
The yield of hydrogen peroxide in the sonication of argon-saturated water was studied in the presence of various solutes. The efficiency of OH radical scavenging is expressed by the reciprocal value of C 1/2, the solute concentration at which the H2O2 yield is decreased by 50 per cent. C 1/2 ranges over several orders of magnitude. It is not related to the specific reactivity towards OH in homogeneous solution. However, it is correlated to the hydrophobicity of the solutes. The competition of I- and a second solute for OH was also studied. The competition between I- and HCO2- follows similar kinetics as in homogeneous solution. However, many other solutes compete in the manner which would be expected if radical scavenging occurred in different phases. The effects are explained in terms of OH radical formation in gaseous argon bubbles, combination of OH radicals to form H2O2 in an interfacial area, and enrichment of hydrophobic solutes in the bubbles.
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Metadata
- Authors
- Henglein, A., & Kormann, C.
- Venue
- International Journal of Radiation Biology and Related Studies in Physics, Chemistry and Medicine
- Publisher
- Informa UK Limited
- Published
- 1985-01
- Volume
- 48
- Issue
- 2
- Pages
- 251-258
- ISSN
- 0020-7616 (ISSN-L)
- OpenAlex
- W2065464833
- Cited by
- 195
- References
- 0
- FWCI
- 4.25
- Type
- journal article
- Language
- en
- Open access
- closed
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- Henglein, A., & Kormann, C. (1985). Scavenging of OH Radicals Produced in the Sonolysis of Water. International Journal of Radiation Biology and Related Studies in Physics, Chemistry and Medicine. https://doi.org/10.1080/09553008514551241
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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