| 介电法研究溶液中分子间的缔合作用(I) |
| |
| 引用本文： | 石秀坤,彭启秀,高宏成.介电法研究溶液中分子间的缔合作用(I)[J].物理化学学报,1987,3(5):555-559. |
| |
| 作者姓名： | 石秀坤 彭启秀 高宏成 |
| |
| 作者单位： | Department of Technical Physics; Peking University |
| |
| 摘 要： | 磷酸三丁酯(TBP)是一种重要的萃取剂,它已广泛地应用于许多金属的提取工艺中。在萃取过程中,水在两相间的转移对萃取过程产生重要影响。一些实验表明,TBP分子是通过氢键与水生成1∶1缔合物形式萃取水分子。但对该缔合物的物理化学性质研究尚未见报导。我们运用静态介电研究法,通过测定溶液介电常数,并应用向无限稀释外推手段,进一步证明TBP与H_2O的缔合作用,并测得TBP·H_2O缔合物的摩尔极化度、偶极矩和缔合平衡常数,进而求得缔合反应的自由能。
|
| 收稿时间： | 1986-05-26 |
| 修稿时间： | 1987-01-03 |
USING THE DIELECTRIC POLARIZATION MEASUREMENT IN STUDYING OF MOLECULAR INTERACTION IN SOLUTION I. WATER-TBP-BENZENE SYSTEM |
| |
| Shi Xiukun,Peng Qixiu,Gao Hongcheng.USING THE DIELECTRIC POLARIZATION MEASUREMENT IN STUDYING OF MOLECULAR INTERACTION IN SOLUTION I. WATER-TBP-BENZENE SYSTEM[J].Acta Physico-Chimica Sinica,1987,3(5):555-559. |
| |
| Authors: | Shi Xiukun Peng Qixiu Gao Hongcheng |
| |
| Institution: | Department of Technical Physics; Peking University |
| |
| 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. |
| |
| Keywords: | |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《物理化学学报》浏览原始摘要信息 |
| 点击此处可从《物理化学学报》下载免费的PDF全文 |
|
