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化学学报
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化学学报 ›› 1957, Vol. 23 ›› Issue (3): 196-200. 上一篇    下一篇

论文

金属络合物的极谱研究 Ⅱ.硫氰酸根和镉的络合物

蒋洪圻, 徐光憲   

  1. 北京大学化学系
  • 投稿日期:1956-12-15 发布日期:2013-06-03

POLAROGRAPHIC STUDIES OF METAL COMPLEXES Ⅱ.THE CADMIUM-THIOCYANATE SYSTEM

TSIANG HON-GEE, HSU KWANG-HSIEN   

  1. Department of Chemistry, Peking University
  • Received:1956-12-15 Published:2013-06-03

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631

被引次数

9

兹测得镉与硫氰酸根络合物的逐级稳定常数为K1=23.0,K2=123,K3=242,K4=302,K5=166和 K6=53(25°),离子强度等于3,用来维持离子强度的惰性电解质是高氯酸钠。改进了测定半波电势的方法使ΔE1/2的误差小于±0.2mv。在处理数据时以logy和(L)对画来代替Leden和Fronaeus法的y和(L)对画,所得结果较为准确。

The half wave potential of the cadmium ion was de:ermintd at 25℃ in sodium perchlorate-sodium thiocyante mixtures over the range of 0.02-2.2 M thiocyanate at an ionic strength of 3.00. The errors in the difference between the half wave potentials of the simple and complex ions were estimated to be less than ±0.2 mv.