物理化学学报 >> 1987, Vol. 3 >> Issue (05): 555-559.doi: 10.3866/PKU.WHXB19870522

研究简报 上一篇    

介电法研究溶液中分子间的缔合作用(I)

石秀坤; 彭启秀; 高宏成   

  1. 北京大学技术物理系
  • 收稿日期:1986-05-26 修回日期:1987-01-03 发布日期:1987-10-15

USING THE DIELECTRIC POLARIZATION MEASUREMENT IN STUDYING OF MOLECULAR INTERACTION IN SOLUTION I. WATER-TBP-BENZENE SYSTEM

Shi Xiukun; Peng Qixiu; Gao Hongcheng   

  1. Department of Technical Physics; Peking University
  • Received:1986-05-26 Revised:1987-01-03 Published:1987-10-15

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Abstract: Tri-n-butyl-phosphate (TBP) is one of the important extractants and widely used in solvent extraction of chemical industry. But the thermodynamic properties of molecular interaction between water and TBP is an unsolved question in the extraction process. In this paper, association constant K_c of water and TBP, ΔG° of the association reaction have been studied by means of dielectric polarization measurement. The limiting values of molecular polarizability and dipole moments of TBP and TBP. H_2O in benzene have also been obtained.