论文部分内容阅读
本文研究2.6.7—三羟基,9—苯基咈哢(苯基咈哢)在碱性介质中的极谱行为。苯基咈哢在PH8～14范围内,仅呈现一个还原波,其半波电位不随汞的滴下时间而改变,其扩散电流与汞柱高度的平方根成正比,与苯基咈哢的浓度成直线关系,温度系数为1.27％/度,从而确定苯基咈哢在滴汞电极上的还原反应是可逆的,作者又从电极过程类型的波形分析方法探讨了它的极谱还原机构。同时,利用氧波随PH的变化,间接地测定了苯基咈哢的第一级酸式解离常数值。
In this paper, the polarographic behavior of 2.6.7-trihydroxyl and 9-phenyl-benzenesulfonamide in alkaline medium was studied. Phenyl 咈 哢 in the PH8 ~ 14 range, showing only a reduction wave, the half-wave potential does not change with the mercury dropping time, the diffusion current is proportional to the square root of mercury height, and the concentration of phenyl 咈 成 a straight line The temperature coefficient of 1.27% / degree, so as to determine the phenyl 咈 还 droplet mercury reduction reaction is reversible, the author from the electrode type of waveform analysis of polarographic mechanism to explore its polarographic. At the same time, the first-order acid dissociation constant value of Phenyl 咈 间 was indirectly measured by the change of oxygen wave with pH.