A THERMOMETRIC ENTHALPY TITRATION STUDY OF THE SILVER THIOSULFATE SYSTEM

被引：6

作者：

HILL, JO ^{[1
]}

LIM, S ^{[1
]}

机构：

[1] LA TROBE UNIV,DEPT CHEM,BUNDOORA,VIC 3083,AUSTRALIA

来源：

THERMOCHIMICA ACTA | 1991年 / 188卷 / 02期

关键词：

D O I：

10.1016/0040-6031(91)87080-G

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

A thermometric enthalpy titration study of the silver thiosulphate system in aqueous solution has revealed that in a titration of thiosulphate with Ag+, three silver/thiosulphate complex species are formed, with stoichiometries [Ag(S2O3)2]3-, [AgS2O3]- and Ag2S2O2, whereas in the reverse titration, Ag2S2O3 is the exclusive species formed. A similar titration of either freshly precipitated silver chloride or silver bromide with thiosulphate revealed that the species [Ag(S2O3)2]3- is formed preferentially. It is apparent that the relative concentrations of Ag+ and S2O32- control the number and stoichiometry of silver/thiosulphate species formed in aqueous solution.

引用

页码：255 / 263

页数：9

共 13 条

[1] The argentothiosulphuric acids and their derivatives Part I The preparation of the sodium salts and the isolation of monoargentomonothiosulphuric acid [J].