Formation of molecular chlorine in dark condition: Heterogeneous reaction of ozone with sea salt in the presence of ferric ion

被引：22

作者：

Sadanaga, Y

Hirokawa, J

Akimoto, H

机构：

[1] Univ Tokyo, Adv Sci & Technol Res Ctr, Meguro Ku, Tokyo 1538904, Japan

[2] Univ Tokyo, Dept Chem Syst Engn, Grad Sch Engn, Bunkyo Ku, Tokyo 1138656, Japan

[3] Frontier Res Syst Global Change, Inst Global Change Res, Yokohama, Kanagawa 2360001, Japan

[4] Univ Tokyo, Grad Sch Sci, Dept Chem, Tokyo 113, Japan

来源：

GEOPHYSICAL RESEARCH LETTERS | 2001年 / 28卷 / 23期

关键词：

D O I：

10.1029/2001GL013722

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

Uptake coefficients Of O-3 on NaCl and synthetic sea salt (SSS) were found to be enhanced from < 10(-5) to similar to3.5 x 10(-2) in the presence of water-soluble Fe3+ in the Fe/Na weight ratio larger than 0.1 %. Cl-2 release was observed without radiation in the reaction Of O-3 and a FeCl3/NaCl mixture with surface adsorbed water at the yields of 0.48 and 0.28 for Fe/Na ratio of 1.0 and 0.5 weight %, respectively. Only Br-2 release was observed for a FeCl3/SSS sample. These results imply that when bromide is deficient in sea salt, Cl-2 would be released from the sea salt with the coexistence of Fe3+. The estimate was made to show that the Cl-2 releasing rate can be high enough to explain sporadically observed Cl-2 at nighttime in a coastal area.

引用

页码：4433 / 4436

页数：4

共 30 条

[1] Chloride and bromide loss from sea-salt particles in southern ocean air [J].