Extraction behaviour of copper(II) and silver(I) with a thiacrown ether carboxylic acid, 2-(3,6,10,13-tetrathiacyclotetradec-1-oxy)hexanoic acid

被引：34

作者：

Saito, K ^{[1
]}

Taninaka, I ^{[1
]}

Murakami, S ^{[1
]}

Muromatsu, A ^{[1
]}

机构：

[1] Kobe Univ, Fac Human Dev, Div Nat Environm & Chem, Kobe, Hyogo 657, Japan

来源：

TALANTA | 1998年 / 46卷 / 05期

关键词：

extraction; copper(II); silver(I); thiacrown ether carboxylic acid;

D O I：

10.1016/S0039-9140(97)00365-2

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The extraction behaviour of copper(II) and silver(I) with 2-(3,6,10;13-tetrathiacyclotetradec-1-oxy)hexanoic acid (TTCTOHA) was investigated at 25 +/- 0.1 degrees C and ionic strength of 0.1. The value of the logarithmic distribution coefficient, log K-DR of TTCTOHA between octan-1-ol and aqueous phases was determined to be 4.13. Copper(II) was extracted with TTCTOHA into octan-1-ol as CuL2, where L represents the anionic species of TTCTOHA. The logarithmic extraction constant, log K-ex(10), was determined at - 7.42. Silver(I) was extracted with TTCTOHA into octan-1-ol as AgL and Ag2L2. The logarithmic distribution constant, log K-DC, of AgL was estimated to be 0.49. On the other hand, silver(I) was extracted into 1,2-dichloroethane as AgL and the logarithmic extraction constant, log K-ex(10), was determined to be - 2.24. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：1187 / 1194

页数：8

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