The reactivity of chlorine atoms in aqueous solution -: Part II.: The equilibrium SO4.-+Cl-⇆Cl.+SO42-

被引：115

作者：

Buxton, GV ^{[1
]}

Bydder, M ^{[1
]}

Salmon, GA ^{[1
]}

机构：

[1] Univ Leeds, Cookridge Hosp, Cookridge Radiat Res Ctr, Leeds LS16 6QB, W Yorkshire, England

来源：

PHYSICAL CHEMISTRY CHEMICAL PHYSICS | 1999年 / 1卷 / 02期

关键词：

D O I：

10.1039/a807808d

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A study of the two simultaneous equilibria, reactions (1) and (2), has been performed by pulse radiolysis in Ar-saturated aqueous solution at 25 degrees C. [GRAPHICS] The forward and reverse rate constants of equilibrium (2) were determined at 0.3 mol dm(-3) ionic strength to be k(2) = (6.1 +/- 0.2) x 10(8) and k(-2) = (2.1 +/- 0.1) x 10(8) dm(3) mol(-1) s(-1). These yield the equilibrium constant K-2 = k(2)/k(-2) = (2.9 +/- 0.2) at 0.3 mol dm(-3) ionic strength, or 1.2 corrected to zero ionic strength. As part of the study, the reactions of SO4.- with S2O82-, t-BuOH and water were found to be < 1.5 x 10(3), (7.8 +/- 0.2) x 10(5) dm(3) mol(-1) s(-1) and (690 +/- 120) s(-1), respectively. The relevance of these results to cloud chemistry is discussed.

引用

页码：269 / 273

页数：5

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