GAS CHROMATOGRAPHIC EVALUTATION OF EQUILIBRIA IN FUSED SALTS .I. TETRACHLOROALUMINATE AND TETRACHLOROFERRATE SYSTEMS

被引：21

作者：

JUVET, RS

SHAW, VR

KHAN, MA

机构：

[1] Department of Chemistry, Chemical Engineering, University of Illinois, Urbana

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 1969年 / 91卷 / 14期

关键词：

D O I：

10.1021/ja01042a017

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Gas chromatography has been applied for the first time for the determination of complex stability constants in inorganic fused-salt systems. Specific retention volumes, partition coefficients, and other thermodynamic data for the volatile solutes SbCI3, NbCl5, and TaCl5 in a series of alkali metal tetrachloroaluminate and tetrachloroferrate liquid phases show that complexes formed between the solute and solvent exhibit decreasing stability with change of liquid-phase alkali metal in the order potassium > thallium > sodium > lithium. Variations are due to differences in availability of complexing chloride ion resulting from the equilibrium 2AlCl4 ↔ Al2Cl7- + Cl-. Through measurements of the gas chromatographic partition coefficient of SbCl3 as a function of added excess alkali metal chloride in the tetrachloroaluminate and tetrachloroferrate liquid phases, the following equilibria have been established:[Formula-Ommited]. © 1969, American Chemical Society. All rights reserved.

引用

页码：3788 / &