| Fe(OH)3对噻虫嗪水解的影响 |
| |
| 引用本文： | 郑立庆,周庆祥,王学锋.Fe(OH)3对噻虫嗪水解的影响[J].安徽农业科学,2010,38(21):11176-11179. |
| |
| 作者姓名： | 郑立庆 周庆祥 王学锋 |
| |
| 作者单位： | 河南师范大学化学与环境学院,黄淮水环境与污染防治省部共建教育部重点实验室,河南新乡,453007;河南师范大学化学与环境学院,黄淮水环境与污染防治省部共建教育部重点实验室,河南新乡,453007;河南师范大学化学与环境学院,黄淮水环境与污染防治省部共建教育部重点实验室,河南新乡,453007 |
| |
| 基金项目： | 河南省科技厅基础与前沿项目 |
| |
| 摘 要： | 研究了Fe（OH）3对噻虫嗪水解的影响。结果表明,Fe（OH）3对噻虫嗪的水解具有明显的催化作用,温度和pH值对其催化作用无明显影响。对噻虫嗪的水解情况进行拟合可知,其水解过程符合一级动力学方程。对噻虫嗪的水解产物进行GC-MS鉴定可知,其主要水解产物为3-（2-氯-噻唑-5-亚甲基）-5-甲基-4-氧代-（1,3,5）噁二嗪。Fe（OH）3催化噻虫嗪水解的机理可能是噻虫嗪C=N基团上的N可与Fe（OH）3中的Fe配合,使C=N键更容易受到OH-的进攻。
|
| 关 键 词： | 噻虫嗪 水解 Fe(OH)3 催化 |
Effects of Fe(OH)3 on Hydrolysis of Thiamethoxam |
| |
| Institution: | ZHENG Li-qing et al(College of Chemistry and Environment,Henan Normal University,Co-constructed Key Laboratory for Huanghuai Water Environment and Pollution Control,ministry of Education,Xinxiang,Henan 453007) |
| |
| Abstract: | The effects of Fe(OH)3 on hydrolysis of thiamethoxam were studied.The results showed that the hydrolysis of thiamethoxam showed obvious catalytic action and the temperature and pH value had no obvious effect on its catalytic action.It could be concluded through fitting hydrolysis of thiamethoxam that its hydrolysis course accorded with first-order kinetics equation.The GC-MS identification on hydrolysis products of thiamethoxam showed that its main hydrolysis product was 3-(2-chloride-thiazole-5-methylene)-5-methyl-4-O-(1,3,5)caco-diazine.The catalytic mechanism of Fe(OH)3 on hydrolysis of thiamethoxam may be that the N on C=N group of thiamethoxam could be combined with Fe in Fe(OH)3,and this made C=N linkage easy to be attacked by OH-. |
| |
| Keywords: | Fe(OH)3 |
| 本文献已被 维普 万方数据 等数据库收录！ |
|
