CAJ | 학술논문

　　本文研究了乙草胺和丁草胺在恒温25℃，pH值为4，7，10蒸馏水和河水中的水解动力学.酰胺类除草剂的水解反应属于一级反应.结果显示乙草胺和丁草胺在蒸馏水和河水中的水解速度差不多，在pH 4水溶液中的水解速度较在pH 7和10的速度快，H＋有催化水解的作用.乙草胺在pH4，7，10的速率常数分别为5×10－4d－1，3×10－4d－1，3×10－4d－1.半衰期分别为1386d，2310d，2310d.丁草胺在pH4，7，10的速率常数分别为1.1×10－3d－1，6×10－4d－1，6×10－4d－1.半衰期分别为630d，1155d，1155d.
　　본문연구료을초알화정초알재항온25℃，pH치위4，7，10증류수화하수중적수해동역학.선알류제초제적수해반응속우일급반응.결과현시을초알화정초알재증류수화하수중적수해속도차불다，재pH 4수용액중적수해속도교재pH 7화10적속도쾌，H＋유최화수해적작용.을초알재pH4，7，10적속솔상수분별위5×10－4d－1，3×10－4d－1，3×10－4d－1.반쇠기분별위1386d，2310d，2310d.정초알재pH4，7，10적속솔상수분별위1.1×10－3d－1，6×10－4d－1，6×10－4d－1.반쇠기분별위630d，1155d，1155d.
The hydrolysis of acetochlor and butachlor in distilled and river water was studied by incubation at 25℃and HPLC analysis in the paper.The kinetics process of acetochlor and butachlor can be described by the fist-order reaction law.The experimental results indicated that the hydrolysis rates of acetochlor or butachlor in distilled and river water were almost same.H＋ can accelerate acetochlor and butachlor hydrolysis.The hydrolysis rate of acetochlor or butachlor in pH 4 water was faster than in pH 7 or pH 10 water.The rate constants k of acetochlor hydrolysis in different pH 4,pH 7 and pH 10 water were 5×10－4d－1，3×10－4d－1 and 3×10－4d－1 respectively.The half-life of acetochlor hydrolysis in different pH 4,pH 7 and pH 10 water were 1386,2310 and 2310 days.The rate constants k of butachlor hydrolysis in different pH 4,pH 7 and pH 10 water were 1.1×10－3d－1，6×10－4d－1and 6×10－4d－1 respectively.The half-life of butachlor hydrolysis in different pH 4,pH 7 and pH 10 water were 630,1155 and 1155 days.