Redetermination of the transformation enthalpies of the xanthoconite–proustite, pyrostilpnite–pyrargyrite and trechmannite–smithite phase transitions

被引：0

作者：

B. Meyer

F. Scholz

机构：

[1] Institut für Chemie,

[2] Humboldt-Universität zu Berlin,undefined

[3] Hessische Straße 1–2,undefined

[4] D-10115 Berlin,undefined

[5] Germany,undefined

来源：

Physics and Chemistry of Minerals | 1997年 / 24卷

关键词：

Enthalpy; Phase Transition; Reduction Process; Electrochemical Signal; Transformation Enthalpy;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

We report here refined values of the transformation enthalpy for xanthoconite to proustite (54.81 kJ/mol) and pyrostilpnite to pyrargyrite (40.32 kJ/mol). Additionally, the enthalpy for the transformation of trechmannite to smithite (5.82 kJ/mol) has been determined. The refinement was possible by taking into account a previously unknown dependence of electrochemical signals on the amount of substance undergoing the reduction process.

引用

页码：50 / 52

页数：2