硫脲在汞电极上吸附行为的研究,近年来仍有报导,至于其衍生物在汞电极上的吸附数据,见诸于文献报导的还不多。我们用毛细管静电计测定了硫脲在0.5NH_2SO_4的水溶液和混合溶剂溶液(0.5NH_2SO_4水溶液加甲醇,其体积比为23.4:26.6)中及二苯基硫脲在混合溶剂溶液中的电毛细曲线。我们使用的毛细管静电计测出的电毛细曲线的重现性,最高点为±0.16达因·厘米~(-1)。正、负半支分别为±0.32达因·厘米~(-1)。图1和图2列出测得的部分结果。通过对这些数据的分析,揭示了硫脲和二苯基硫脲在汞电极上的吸附行为。我们还测定了尿素在0.5N H_2SO_4中的电毛细曲线。发 The research on the adsorption behavior of thiourea on mercury electrode has been reported in recent years. As for the adsorption data of thiourea on the mercury electrode, it has been reported in the literature that there are not many reports. We measured the capillary curves of thiourea in 0.5NH 2 SO 4 aqueous solution and mixed solvent solution (0.5NH 2 SO 4 aqueous solution plus methanol, volume ratio of 23.4: 26.6) and diphenylthiourea in mixed solvent solution by capillary electrometer. We used capillary electrometer to measure the electrical capillary curve reproducibility, the highest point was ± 0.16 dyne cm -1. Positive and negative half-branch were ± 0.32 dyne cm -1. Figures 1 and 2 show some of the measured results. Through the analysis of these data, the adsorption behavior of thiourea and diphenylthiourea on the mercury electrode was revealed. We also measured the electrical capillary curve of urea in 0.5N H 2 SO 4. hair