Measurements of effective Henry's law constants for hydrogen peroxide in concentrated salt solutions

被引：13
|
作者：
Chung, MOY [1 ]
Muthana, S [1 ]
Paluyo, RN [1 ]
Hasson, AS [1 ]
机构：
[1] Calif State Univ Fresno, Dept Chem, Fresno, CA 93740 USA
来源：
ATMOSPHERIC ENVIRONMENT | 2005年 / 39卷 / 16期
关键词：
particulate matter; toxicity; air pollution; solubility; reactive oxygen species (ROS);
D O I：
10.1016/j.atmosenv.2005.01.025
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The solubility of hydrogen peroxide was measured in aqueous salt solutions containing ammonium sulfate, ammonium nitrate, ammonium chloride, and sodium nitrate. Effective Henry's law constants are reported for these salts at 292 K for concentrations up to 10 M. Salts containing ammonium ions were found to increase the solubility of hydrogen peroxide by up to a factor of two compared to pure water. The data are consistent with a reversible chemical reaction between ammonium ions and hydrogen peroxide. Implications for the aerosol mass loadings of hydrogen peroxide in atmospheric particulate matter and their associated health effects are discussed. (c) 2005 Elsevier Ltd. All rights reserved.
引用
收藏
页码：2981 / 2989
页数：9
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