电导法和滴定法测定2,4-滴解离常数  

Determination of Dissociation Constant of 2,4-D by Conductometric Method and Titration Method

作　　者：谭头云[1] 李俊杰 郑欢图 刘新洋[1] 谢佩瑾[1] Tan Tou-yun;Li Jun-jie;Zheng Huan-tu;Liu Xin-yang;Xie Pei-jin(Zhejiang Research Institute of Chemical Industry Co.,Ltd.,Hangzhou 310023,China)

机构地区：[1]浙江省化工研究院有限公司,杭州310023

出　　处：《现代农药》2018年第4期26-27,共2页MODERN AGROCHEMICALS

摘　　要：为评价2,4-滴对环境的影响,采用电导法和滴定法测定2,4-滴在水中的解离常数。在25℃条件下,电导法测得2,4-滴的pK_a为3.80,滴定法测得2,4-滴的pK_a为3.70。滴定法和电导法2种方法均适用于2,4-滴解离常数的测定。To provide a basis for evaluating the impact of 2,4-D on the environment, the dissociation constant of 2,4-D was detected by condustometric method and titration method at 25℃. The results showed that the pK, value of 2,4-D was 3.80 by condustometric method, and the pK, value was 3.70 by titration method. The condustometric method and titration method were both suitable for determination of the dissociation constant of 2,4-D.

关 键 词：电导法 滴定法 2 4-滴 解离常数 

分 类 号：TQ450.1[化学工程—农药化工]