Effects of electron activity and pH on the generation and stability of chlorine dioxide
文献类型：期刊论文
| 作者 | Pei, YS; Luan, ZK; Chen, H |
| 刊名 | CHINESE JOURNAL OF INORGANIC CHEMISTRY
 |
| 出版日期 | 2001 |
| 卷号 | 17期号:3页码:407-413 |
| 关键词 | chlorine dioxide stability electron activity p epsilon-pH predominance area diagram |
| 英文摘要 | The predominance area diagrams of electron activity (p epsilon) as a function of pH for chlorine system with multi-oxychlorine species have been constructed. On the base of the diagrams, electron activity and pH directly dominate the generation and stability of chlorine dioxide. Generation processes are in fact to shift the equilibria of chlorine system into the predominance area of chlorine dioxide, which correspond to the processes of acidification, oxidization and/or reduction. It is practically not achievable to generate pure chlorine dioxide from chlorate and chlorite. For different water environments, chlorine dioxide may be present a variation on stability owing to the changed p epsilon and pH values. If no disproportionation of chlorine dioxide into chlorate occurred in aqueous solution, chlorine dioxide would be relatively stable and coexist with chlorite (p epsilon 17.63 and pH > 9.68), molecular chlorine (pH < 0.92), or chloride ion (pH 0.92 similar to 9.68). When chlorine system has already reached the ultimate equilibria, chlorine dioxide is a stable species only in strongly acid media. As the acidity decreases, chlorine dioxide disproportionates into chlorate and molecular chlorine. Aqueous chlorine dioxide is unstable within the normal pH range. |
| WOS记录号 | WOS:000168792300018 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/24078]  |
| 专题 | 生态环境研究中心_环境水质学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Pei, YS,Luan, ZK,Chen, H. Effects of electron activity and pH on the generation and stability of chlorine dioxide[J]. CHINESE JOURNAL OF INORGANIC CHEMISTRY,2001,17(3):407-413. |
| APA | Pei, YS,Luan, ZK,&Chen, H.(2001).Effects of electron activity and pH on the generation and stability of chlorine dioxide.CHINESE JOURNAL OF INORGANIC CHEMISTRY,17(3),407-413. |
| MLA | Pei, YS,et al."Effects of electron activity and pH on the generation and stability of chlorine dioxide".CHINESE JOURNAL OF INORGANIC CHEMISTRY 17.3(2001):407-413. |
入库方式： OAI收割
来源：生态环境研究中心
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