UPTAKE OF HBR ON ICE AT POLAR ATMOSPHERIC CONDITIONS

被引：26

作者：

CHU, LT ^{[1
]}

HERON, JW ^{[1
]}

机构：

[1] SUNY ALBANY,ESP,ALBANY,NY 12201

来源：

GEOPHYSICAL RESEARCH LETTERS | 1995年 / 22卷 / 23期

关键词：

D O I：

10.1029/95GL03290

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

The uptake of HBr in water ice has been investigated in a flow reactor under polar atmospheric conditions. The HBr uptake on ice films was determined in the range of 1.1+/-0.7x10(14)-7.7+/-1.1x10(16) molecules/cm(2) at 188 and 195 K as HBr partial pressures varied from 3.7x10(-8) to 6.4x10(-6) Torr. This is the first report of a laboratory study at polar atmospheric conditions that shows HBr . 3H(2)O to be formed during the uptake process. The HBr adsorption and uptake thermodynamics were also investigated. The implications of these new findings for the heterogeneous chemistry of the polar ozone depletion are briefly discussed.

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页码：3211 / 3214

页数：4

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