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

T. Løgager; K. Sehested; J. Holcman

doi:10.1016/0969-806X(93)90017-O

Rate constants of the equilibrium reactions SO^{⨪₄ + HNO₃ ⇄ HSO^-₄ + NO₃ and SO^⨪₄ + NO^-₃ ⇄ SO^2-₄ + NO₃}

T. Løgager
, K. Sehested
, J. Holcman

Research output: Contribution to journal › Journal article › Research › peer-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 language	English
Journal	Radiation Physics and Chemistry
Volume	41
Issue number	3
Pages (from-to)	539-543
ISSN	0969-806X
DOIs	https://doi.org/10.1016/0969-806X(93)90017-O
Publication status	Published - 1993

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@article{668cbb3d50be499ab684fbe70fcd8fab,

title = "Rate constants of the equilibrium reactions SO⨪4 + HNO3 ⇄ HSO-4 + NO3 and SO⨪4 + NO-3 ⇄ SO2-4 + NO3",

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.",

keywords = "Vurdering og begr{\ae}nsning af industrielle milj{\o}belastninger",

author = "T. L{\o}gager and K. Sehested and J. Holcman",

year = "1993",

doi = "10.1016/0969-806X(93)90017-O",

language = "English",

volume = "41",

pages = "539--543",

journal = "Radiation Physics and Chemistry",

issn = "0969-806X",

publisher = "Elsevier",

number = "3",

}

TY - JOUR

T1 - Rate constants of the equilibrium reactions SO⨪4 + HNO3 ⇄ HSO-4 + NO3 and SO⨪4 + NO-3 ⇄ SO2-4 + NO3

AU - Løgager, T.

AU - Sehested, K.

AU - Holcman, J.

PY - 1993

Y1 - 1993

N2 - 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.

AB - 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.

KW - Vurdering og begrænsning af industrielle miljøbelastninger

U2 - 10.1016/0969-806X(93)90017-O

DO - 10.1016/0969-806X(93)90017-O

M3 - Journal article

SN - 0969-806X

VL - 41

SP - 539

EP - 543

JO - Radiation Physics and Chemistry

JF - Radiation Physics and Chemistry

IS - 3