ELECTROCHEMICAL MEASUREMENT OF OXYGEN IN LIQUID NICKEL

被引：16

作者：

IWASE, M

MIKI, S

MORI, T

机构：

[1] Department of Metallurgy, Kyoto University, Sakyo-ku, Kyoto

来源：

JOURNAL OF CHEMICAL THERMODYNAMICS | 1979年 / 11卷 / 04期

关键词：

D O I：

10.1016/0021-9614(79)90052-1

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

E.m.f. measurements on the galvanic cell: Mo|Mo + MoO2|ZrO2(CaO)|O(in Ni)LaCrO3|Pt were performed at 1773, 1823, and 1873 K to determine the thermodynamic properties of oxygen dissolved in liquid nickel. The Gibbs energy change for the solution of oxygen in liquid nickel was determined as ΔG°(O)/kJ mol-1 = -RT In[a(O)/p{O2(Ni)} 1 2] = -{81.8 + 0.0084( T K)} ± 1.2. where p{O2(Ni)} is the oxygen partial pressure in equilibrium with oxygen dissolved in liquid nickel, and the Henrian activity a(O) of oxygen is referred to the dissolved oxygen in hypothetical (Ni + 1 mass per cent O) solution. © 1979.

引用

页码：307 / 315

页数：9