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电导法和滴定法测定2,4-滴解离常数

作  者:
谭头云;李俊杰;郑欢图;刘新洋;谢佩瑾
关键词:
电导法;滴定法;2,4-滴;解离常数
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.
作  者:
Tan Tou-yun;Li Jun-jie;Zheng Huan-tu;Liu Xin-yang;Xie Pei-jin;Zhejiang Research Institute of Chemical Industry Co., Ltd.;
单  位:
Tan Tou-yun%Li Jun-jie%Zheng Huan-tu%Liu Xin-yang%Xie Pei-jin%Zhejiang Research Institute of Chemical Industry Co., Ltd.
关键词:
titration method;;condustometric method;;2,4-D;;dissociation constant
摘  要:
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_a value of 2,4-D was3.80 by condustometric method, and the pK_a 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.

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