Oxidation-reduction equilibrium of Cu2+/Cu+ in binary alkaline sulfate melts

被引：3
|
作者：
Yamamoto, T [1 ]
YamanoUchi, N [1 ]
Masamura, K [1 ]
Tamura, M [1 ]
Iwase, M [1 ]
机构：
[1] NKK CORP, MAT & PROC RES CTR, KAWASAKI, KANAGAWA 210, JAPAN
来源：
METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE | 1996年 / 27卷 / 03期
关键词：
D O I：
10.1007/BF02914902
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Oxidation-reduction equilibria for a Cu2+/Cu+ couple in binary alkaline sulfate melts, Li2SO4 + R(2)SO(4) (R = Na, K, Rb, Cs), were determined at temperatures of 973, 1023, and 1073 K by equilibrating these melts with gas mixtures of Ar + O-2 + SO2. RedOx equilibria are well interpreted by the average ionic radii of alkaline metals: r(average) = X(Li2SO4) r(Li) + X(R(2)SO(4)) r(R), where r and X denote, respectively, mole fraction and the ionic radii of alkaline metal. The oxygen anion activities would increase with an increase in R(2)SO(4) mole fractions of binary sulfates Li2SO4 + R(2)SO(4).
引用
收藏
页码：385 / 392
页数：8
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