INVESTIGATION OF THE AQUEOUS LITHIUM AND MAGNESIUM HALIDE-SYSTEMS

被引:52
作者
CHRISTOV, C [1 ]
BALAREW, C [1 ]
PETRENKO, S [1 ]
VALYASHKO, V [1 ]
机构
[1] RUSSIAN ACAD SCI,NS KURNAKOV INST GEN & INORGAN CHEM,117907 MOSCOW,RUSSIA
关键词
SOLUBILITY DIAGRAM; DOUBLE SALTS; PITZERS MODEL; BROMOCARNALLITE; CARNALLITE;
D O I
10.1007/BF00972747
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The solubilities of the system LiBr-MgBr2-H2O have been investigated at 25-degrees-C and 50-degrees-C. It is established that the system is of a simple eutonic type. Pitzer's model is used for calculating the thermodynamic functions needed for plotting the solubility isotherms of the systems LiX-MgX2-H2O (X = Cl, Br) at 25-degrees-C. According to calculations made, the Gibbs energy of formation of LiCl.MgCl2.7H2O from simple salts is DELTA(r)G(m)o = -2.01 kJ-mol-1, while the value DELTA(f)G(m)o = -2748 kJ-mol-1 corresponds to formation from the elements.
引用
收藏
页码:595 / 604
页数:10
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