SOLVENT-EXTRACTION BEHAVIOR OF PLATINUM(IV) AND PALLADIUM(II) AS CHLOROCOMPLEX ACIDS WITH TRIOCTYLPHOSPHINE OXIDE

被引：8

作者：

HASEGAWA, Y ^{[1
]}

KOBAYASHI, I ^{[1
]}

OKUDA, A ^{[1
]}

机构：

[1] TANAKA KIKINZOKU KOGYO KK,CTR TECH,HIRATSUKA,KANAGAWA 254,JAPAN

来源：

ANALYTICAL SCIENCES | 1991年 / 7卷 / 03期

关键词：

PLATINUM(IV); PALLADIUM(II); EXTRACTION CONSTANT; SOLVENT EXTRACTION; TRIOCTYLPHOSPHINE OXIDE;

D O I：

10.2116/analsci.7.377

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

In order to compare the extractions of platinum(IV) and palladium(II) complex acids with trioctylphosphine oxide (TOPO) to those of other inorganic acids, the distribution ratio of these metals between o-xylene containing TOPO and 4.0 mol/dm3 (Na, H)(Cl, HSO4) has been measured at 298K. The extraction curves can be explained by the assumption that the dominant extracted species ratio of either platinum(IV) or palladium(II) would be 2:1:4 for proton: chlorocomplex anion: TOPO, at least in 4.0 mol/dm3 chloride media. The extraction constants have been determined to be 10(5.01) for platinum(IV) and 10(4.04) for palladium(II).

引用

页码：377 / 381

页数：5

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