Rate constants for the reaction OH+NO2+M→HNO3+M under atmospheric conditions

被引：105

作者：

Brown, SS

Talukdar, RK

Ravishankara, AR

机构：

[1] NOAA, Aeron Lab, Boulder, CO 80303 USA

[2] Univ Colorado, Cooperat Inst Res Environm Sci, Boulder, CO 80309 USA

[3] Univ Colorado, Dept Chem, Boulder, CO 80309 USA

来源：

CHEMICAL PHYSICS LETTERS | 1999年 / 299卷 / 3-4期

基金：

美国海洋和大气管理局;

关键词：

D O I：

10.1016/S0009-2614(98)01283-4

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：

We present rate constants for the title reaction, k(1), measured using a pulsed photolysis-laser induced fluorescence technique between 220 and 250 K in 20-250 Torr of N-2 and 20-50 Torr of O-2. Our measured k(1) agree with literature values at low temperatures but show that the current recommendations for atmospheric modeling overestimate k(1) by 10-30% in the falloff region below 250 K. The revised values of k(1) help to better define the role of NO2 in the stratosphere. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：277 / 284

页数：8

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