Thermodynamic stability of samarium and europium chlorides in molten alkali metal chlorides

被引：0
|
作者：
Novoselova, A [1 ]
Khokhlov, V [1 ]
Shishkin, V [1 ]
机构：
[1] Inst High Temp Electrochem, Ekaterinburg 620219, Russia
来源：
PROCEEDINGS OF THE 6TH INTERNATIONAL SYMPOSIUM ON MOLTEN SALT CHEMISTRY AND TECHNOLOGY | 2001年
关键词：
thermodynamics; molten salts; rare earth chlorides; alkali metal chlorides; equilibrium pressure of chlorine;
D O I：
暂无
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The formal standard redox potentials of samarium (E-Sm/Sm(*3+2+)) and europium (E-Eu/Eu(*3+2+)) in molten alkali metal chlorides have been investigated by potentiometric method versus standard chlorine reference electrode. The stability of the samarium and europium divalent chlorides in alkali metal chloride solutions has been established. The equilibrium pressure of chlorine over alkali metal chloride melts containing samarium or europium trichlorides and equilibrium constants for the reaction LnCl(3(l))double left right arrowLnCl(2(l))+1/2Cl(2(g)) were estimated for the salt systems studied. The effect of the cationic composition of the melt-solvent on the thermodynamic properties above mentioned has been also reported.
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页码：253 / 256
页数：4
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