Rate constants of the equilibrium reactions SO4 + HNO3 ⇄ HSO-4 + NO3 and SO4 + NO-3 ⇄ SO2-4 + NO3

T. Løgager, K. Sehested, J. Holcman

    Research output: Contribution to journalJournal articleResearchpeer-review

    Abstract

    Rate constants of the following equilibrium reactions were determined by pulse radiolysis at high solute concentrations: SO4.- + HNO, half arrow right over half arrow left HSO4- + NO3. [k(f) = (2.7 +/- 0.5) x 10(6) M-1 s-1, k(r) = (5.6 +/- 1.0) x 10(3) M-1 s-1] and SO4.- + NO3- half arrow right over half arrow left SO42- + NO3. [k(f) = (5.0 +/- 2.0) x 10(4) M-1 s-1, k(r) = (1.0 +/-0.2) x 10(5) M-1 s-1]. By extrapolation of the latter to zero ionic strength an approximate reduction potential of NO3/NO3-, E0 = 2.45 +/- 0.05 V can be estimated.
    Original languageEnglish
    JournalRadiation Physics and Chemistry
    Volume41
    Issue number3
    Pages (from-to)539-543
    ISSN0969-806X
    DOIs
    Publication statusPublished - 1993

    Fingerprint Dive into the research topics of 'Rate constants of the equilibrium reactions SO<sup>⨪<sub>4</sub> + HNO<sub>3</sub> ⇄ HSO<sup>-</sup><sub>4</sub> + NO<sub>3</sub> and SO<sup>⨪</sup><sub>4</sub> + NO<sup>-</sup><sub>3</sub> ⇄ SO<sup>2-</sup><sub>4</sub> + NO<sub>3</sub></sup>'. Together they form a unique fingerprint.

    Cite this