Quantitative Analysis of Titanium Ions in the Equilibrium with Metallic Titanium in NaCl-KCl Equimolar Molten Salt

被引：22
|
作者：
Sekimoto, Hidehiro [1 ]
Nose, Yoshitaro [1 ]
Uda, Tetsuya [1 ]
Sugimura, Hiroyuki [1 ]
机构：
[1] Kyoto Univ, Dept Mat Sci & Engn, Fac Engn, Kyoto 6068501, Japan
来源：
MATERIALS TRANSACTIONS | 2010年 / 51卷 / 11期
关键词：
molten NaCl-KCl; titanium metal and ions; chemical analysis; equilibrium constant; EUTECTIC MELT; ELECTRODEPOSITION; DEPOSITION; DICHLORIDE; COATINGS; CHLORIDE; IRON;
D O I：
10.2320/matertrans.M2010238
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The equilibrium between titanium ions (Ti2+, Ti3+) and metallic titanium (Ti) in NaCl-KCl equimolar molten salt was investigated using TiCl3 and Ti. Equilibrium experiments were carried out in metal container of titanium or stainless-steel at 740 degrees C. The concentrations of titanium ions were determined by chemical methods consisting of continuous three steps. Ti2+ and Ti were quantitated by H-2 evolution method. Ti3+ was quantitated with titration by Fe3+. As the result, the concentration of Ti2+ was higher than that of Ti3+. The concentration quotient, K-c = (x(Ti3+))(2)/(x(Ti2+))(3), depends on the concentration of Ti2+. The value of K-c at 740 degrees C is recommended to be 5.9 at x(Ti2+) = 0.02 and 2.6 at x(Ti2+) = 0.07 respectively. [doi:10.2320/matertrans.M2010238]
引用
收藏
页码：2121 / 2124
页数：4
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