Oxidation of thioacetamide by ferrate(VI)

Virender K. Sharma, Ruben A. Rendon, Frank J. Millero, Felipe G. Vazquez

Research output: Contribution to journalArticle

46 Scopus citations

Abstract

The rates of thioacetamide oxidation with ferrate(VI) (Fe(VI)) were determined as a function of pH (9.14-12.00) and temperature (15-35°C) in 0.01 M phosphate. The reaction was found to be first order for each reactant. The activation energy, ΔE(≠), obtained was 59.7 ± 0.7 kJ mol-1. The rates decrease with an increase in pH. The stoichiometry determined was 8HFeO4/- + 3CH3CSNH2 + 9H2O → 8Fe(OH)3 + 3CH3CONH2 + 3SO4/2- + 2OH-. A mechanism is proposed in which thioacetamide is oxidized by Fe(VI) in steps to sulfenyl, sulfinic, and sulfonic acid and finally to sulfate and acetamide. The comparison of results with other sulfur-containing compounds suggests that compounds undergo oxidation at S(-2) site by Fe(VI). (C) 2000 Elsevier Science B.V.

Original languageEnglish (US)
Pages (from-to)235-242
Number of pages8
JournalMarine Chemistry
Volume70
Issue number1-3
DOIs
StatePublished - May 1 2000

Keywords

  • Fe(VI)
  • Oxidation
  • Thioacetamide

ASJC Scopus subject areas

  • Oceanography
  • Chemistry(all)
  • Environmental Chemistry
  • Water Science and Technology

Fingerprint Dive into the research topics of 'Oxidation of thioacetamide by ferrate(VI)'. Together they form a unique fingerprint.

  • Cite this

    Sharma, V. K., Rendon, R. A., Millero, F. J., & Vazquez, F. G. (2000). Oxidation of thioacetamide by ferrate(VI). Marine Chemistry, 70(1-3), 235-242. https://doi.org/10.1016/S0304-4203(00)00029-3