化学学报 ›› 1980, Vol. 38 ›› Issue (6): 521-528. 上一篇    下一篇

论文

溶解度法研究金(Ⅰ)与硫脲的络合物

章健民1, 杨丙雨2, 刘传胜2, 徐存生2   

  1. 1. 内蒙古冶金研究所 呼和浩特;
    2. 吉林省冶金研究所 长春
  • 收稿日期:1978-12-08 出版日期:1980-11-15 发布日期:2013-06-03

A STUDY OF COMPLEXES OF AU (Ⅰ) WITH THIOUREA BY SOLUBILITY METHOD

ZHANG JIAN-MIN1, YANG BING-YU LIU2, CHUAN-SHENG2, XU CUN-SHENG2   

  1. 1. Metallurgical Institute of Neimenggu, Huhehaote;
    2. Metallurgical Institute of Kivin Province, Chang chun
  • Received:1978-12-08 Online:1980-11-15 Published:2013-06-03

本文应用溶度法研究了硫脲提金时的Au(Ⅰ)与硫脲的络合情况,得知Au(Ⅰ)与硫脲的络合物的最大配位数为3,即Au(Ⅰ)在硫脲溶液中有Au(Thio)+、Au(Thio)2+和Au(Thio)3+等络离子存在.在25℃时,其稳定常数分别为β1=3.3×104、β2=5.8×105和β3=1.3×106。根据18、25和35℃三种温度时的试验结果,求得Au(Ⅰ)与配位体硫脲之间络合平衡的热力学函数ΔF°、ΔS°和ΔH。

The oompleging of An (Ⅰ) with thiourea was studied at ionio strength 0.5 and at 18°,25° and 35℃ by solnbility method.Solubility method showed the formation of 1:1,1: 2 and 1: 3 oompleaes of Au (Ⅰ) with thiourea.The oonseoutive stability oonstants and thermodynamio oonstants of ΔF°,ΔH and ΔS° of oomplexation were oaloulated from the experimental data.