The effect of ionic strength and buffer choice on the decomposition of tetrathionate in alkaline solutions

被引：14

作者：

Breuer, PL ^{[1
]}

Jeffrey, MI ^{[1
]}

机构：

[1] Monash Univ, Dept Chem Engn, Clayton, Vic 3168, Australia

来源：

HYDROMETALLURGY | 2004年 / 72卷 / 3-4期

关键词：

tetrathionate; kinetics; alkaline decomposition;

D O I：

10.1016/j.hydromet.2003.07.001

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The rate of alkaline decomposition of tetrathionate has been measured in nitrogen and air-saturated solutions of varying ionic strength and type of buffer. The rate increases significantly in high ionic strength buffer solutions and is not affected by oxygen. For gold-leaching solutions containing ammonia and ammonium ions, the decomposition of tetrathionate is faster than for carbonate- or phosphate-buffered solutions. These findings explain the discrepancies obtained in the previous studies of this reaction. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：335 / 338

页数：4

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