ATMOSPHERIC FATE OF HYDROFLUOROETHANES AND HYDROFLUOROCHLOROETHANES .1. RATE COEFFICIENTS FOR REACTIONS WITH OH

被引：64

作者：

GIERCZAK, T

TALUKDAR, R

VAGHJIANI, GL

LOVEJOY, ER

RAVISHANKARA, R

机构：

[1] NOAA, AERON LAB, R-E-AL2, 325 BROADWAY, BOULDER, CO 80303 USA

[2] UNIV COLORADO, NOAA, COOPERAT INST RES ENVIRONM SCI, BOULDER, CO 80309 USA

[3] UNIV COLORADO, DEPT CHEM & BIOCHEM, BOULDER, CO 80309 USA

来源：

JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES | 1991年 / 96卷 / D3期

关键词：

D O I：

10.1029/90JD02736

中图分类号：

P4 [大气科学（气象学）];

学科分类号：

0706 ; 070601 ;

摘要：

The rate coefficients for the reactions of OH with five halocarbons [CF3CH2F (HFC 134a), CF3CHClF (HCFC 124), CF3CHCl2 (HCFC 123), CH3CHF2 (HFC 152a), and CH3CF2Cl (HCFC 142b)], which are proposed as alternatives to chlorofluoromethanes, have been measured. A pulsed photolysis system and a discharge flow apparatus were used to measure the rate coefficients between approximately 210 and 425 K. Use of the complementary technique enabled identification of systematic errors and minimization of these errors. The obtained values are compared with values previously measured by other groups. This data base is used in the subsequent paper to calculate the atmospheric lifetimes of the five compounds.

引用

页码：5001 / 5011

页数：11

共 28 条

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