Intermediates in the oxidation of azide ion in acidic solutions

Zeev B. Alfassi, W. A. Prütz, Robert H. Schuler

Research output: Contribution to journalArticlepeer-review

21 Scopus citations


Radiolytic oxidation of azide ion in acidic solutions partially occurs via production of a relatively unreactive intermediate which has a lifetime of ∼10 μs but which decays into azide radical by reaction with proton donors. From chemical arguments this intermediate is identified as the HN3-· radical anion produced by attachment of eaq- to hydrazoic acid. As with N2O, the reducing entity produced in radiolysis, eaq-, is converted into an oxidizing species, N3·, with a delay controlled by the rate of reaction of HN3-· with proton donors. This delay must be taken into account in studies of secondary oxidation processes, particularly in acidic solutions at high solute concentrations where reaction with substrates occurs at submicrosecond times.

Original languageEnglish
Pages (from-to)1198-1203
Number of pages6
JournalJournal of Physical Chemistry
Issue number6
StatePublished - 1 Jan 1986

ASJC Scopus subject areas

  • General Engineering
  • Physical and Theoretical Chemistry


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