Published September 1975
| public
Journal Article
Kinetics of the oxidation of sulfite by hydrogen peroxide in acidic solution
- Creators
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Hoffmann, M. R.
- Edwards, J. O.
Abstract
The kinetics of the oxidation of sulfite by hydrogen peroxide has been investigated by stopped-flow spectrophotometry over the pH range 4-8. The rate law for the oxidation of sulfite in this pH range is -d[SO_2]_T/dt = k [H^+][H_2O_2][SO_2]_T([H^+]/([H^+] K_a_2)} + k'[HA][H_2O_2][SO_2]_T{[H^+]/([H^+] + K_a_2 where HA represents all possible proton donors in solution. The reaction probably proceeds via a nucleophilic displacement by H_2O_2 on HSO_3^- to form a peroxomonosulfurous acid intermediate which then undergoes a rate-determining rearrangement.
Additional Information
© 1975 American Chemical Society. (Received November 18, 1974; Revised Manuscript Received June 13, 1975) Publication costs assisted by the National institute of Environmental Health Sciences. We are grateful to the PHS (Grant No. ES0080-08) and the AFOSR (Grant No. 71-1961A) for financial support.Additional details
- Eprint ID
- 62944
- Resolver ID
- CaltechAUTHORS:20151215-113017738
- ES0080-08
- Public Health Service
- 71-1961A
- Air Force Office of Scientific Research (AFOSR)
- National Institute of Environmental Health Sciences
- Created
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2015-12-15Created from EPrint's datestamp field
- Updated
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2021-11-10Created from EPrint's last_modified field