Acta Chimica Sinica ›› 1966, Vol. 32 ›› Issue (1): 94-97. Previous Articles     Next Articles

水溶液中水杨酸铜络合物的组成和稳定性的研究——Ⅰ.过量金属中和曲线法

杨秀岑   

  1. 四川医学院医学化学教研组
  • 投稿日期:1965-01-27 发布日期:2013-06-03

STUDIES ON THE COMPOSITION AND STABILITY OF COMPLEXES OF COPPER (Ⅱ) WITH SALICYLIC ACID IN AQUEOUS SOLUTION——Ⅰ. pH-TITRATION METHOD WITH THE METALLIC ION IN EXCESS

YANG Hsiu-Chin   

  1. Department of Medicinal Chemistry, Szechuan Medical College
  • Received:1965-01-27 Published:2013-06-03

Two solutions,in one of which Cu2+: H2Sal*=10:1,and in the other,20:1,were subjected to pH-titrations with μ≈0.03 at 20±0.5℃.The stability constants of CuSal and CuHSal+ have been calculated from the results thus obtained by the method of Schwarzenbach.The logarithm of the stability constant of CuSal was found to be 10.5.This figure agrees very well with those obtained by other authors with different methods.The fact that the stability constant of CuHSaI+ turned out to be negative would be an indication of the absence of this cation in aqueous solution under the experimental circum- stances.