MECHANISM OF SO2 OXIDATION BY CH3O2 RADICALS - RATE COEFFICIENTS FOR THE REACTIONS OF CH3O2 WITH SO2 AND NO

被引：14

作者：

SIMONAITIS, R ^{[1
]}

HEICKLEN, J ^{[1
]}

机构：

[1] PENN STATE UNIV,IONOSPHERE RES LAB,UNIVERSITY PK,PA 16802

来源：

CHEMICAL PHYSICS LETTERS | 1979年 / 65卷 / 02期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/0009-2614(79)87082-7

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：

The reactions of CH3O2 with SO2 and NO have been studied by steady state photolysis of azomethane in the presence of O2SO2→NO mixtures at 296 K and 1 atm total pressure. The quantum yield of NO oxidation by CH3O2 radicals is increased substantially when SO2 is added to the system indicating an SO2 induced chain oxidation of NO. The rate law gives k1/k2 = (2.5 ± 0.5) × 10-3 for CH3O2 + SO2 → CH3O2SO2 (1), CH3O2 + NO → CH3O + NO2 (2). Combining this ratio with the absolute value of k1 = 8.2 × 10-15 cm3 s-1 gives k2 = 10-11.5 ± 02 cm3 s-1. © 1979.

引用

页码：361 / 365

页数：5

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