ACID-BASE BEHAVIOR OF THE HERBICIDE PYRAZON - A SPECTROSCOPIC AND POLAROGRAPHIC STUDY

被引：0
|
作者：
MENDEZ, JH
MARTINEZ, RC
GONZALO, ER
机构：
来源：
ANALUSIS | 1991年 / 19卷 / 01期
关键词：
PYRAZON; HERBICIDE; ACID-BASE BEHAVIOR; IR AND UV SPECTROSCOPY; POLAROGRAPHY; SULFATE; MULTICENTRIC CLINICAL STUDIES;
D O I：
暂无
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
Infrared spectroscopic studies revealed that the herbicide Pyrazon (5-amino-chloro-2-phenyl-3(2H)-pyridazinone) is in acid-base equilibrium with a form produced by acid hydrolysis of the > C = N- bond, which in turn involves the reversible opening of the pyridazine ring. The acid-base constant of this equilibrium could not be calculated by spectroscopic or potentiometric methods; the polarographic dissociation constant, pK'(a), could only be determined by polarographic studies in different buffers.
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页码：23 / 26
页数：4
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