化学
熔盐
电化学
电解质
无机化学
共晶体系
化学工程
作者
Yolanda Castrillejo,A.M. Martínez,Geir Martin Haarberg,B. Børresen,K.S. Osen,Reidar Tunold
标识
DOI:10.1016/s0013-4686(96)00305-2
摘要
Abstract The behaviour of an yttria-stabilized zirconia electrode in the CaCl2-NaCl melt has been investigated at 575 °C. The response of the electrode is Nernstian and permits its use in the titration of Mg(II) with oxide ions. The solubility product of MgO was also determined. We have calculated the equilibrium constant of the carbonate ion dissociation as well as those corresponding to the systems HCl H 2 O and Cl 2 O 2 , finding that molten CaCl2-NaCl is more acidic than the LiCl-KCl eutectic melt and the BaCl2-CaCl2-NaCl (23.5:24.5:52 mol%) melt. On the other hand, the mixture can be purified with respect to oxide ions by gaseous reagents such as HC1 and Cl2.
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