ACTIVITIES OF OXYGEN IN LIQUID LEAD AND ANTIMONY FROM ELECTROCHEMICAL MEASUREMENTS

被引：69

作者：

OTSUKA, S

KOZUKA, Z

机构：

[1] Department of Metallurgical Engineering, Faculty of Engineering, Osaka University, Osaka

来源：

METALLURGICAL TRANSACTIONS B-PROCESS METALLURGY | 1979年 / 10卷 / 04期

关键词：

D O I：

10.1007/BF02662559

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The activities of oxygen in liquid lead and liquid antimony were measured for the temperature range of 1073 to 1323 and 973 to 1123 K, respectively, using the following electrochemical cell: {Mathematical expression} in liquid Pb or Sb/ZrO2(+CaO)/Air, Pt. After measuring the equilibrium emf, the liquid metal was deoxidized by imposing a preselected voltage on the electrodes. The fairly low oxygen concentration in liquid metal could be easily determined by a modified analysis of the quantity of electrical charge passing through the cell. The standard free energies of solution of oxygen in liquid lead and liquid antominy for the reaction of l/2 O2 → O (1 at. pct) were determined respectively to be: ΔG° (in Pb) = -28,300 + 3.38 T (± 300) cal/g-atom = -118,600 + 14.1 T (± 1300) J/g-atom, ΔG° (in Sb) = -32,880 + 5.20 T (± 350) cal/g-atom = -137,600 + 21.8 T (± 1500) j/g-atom, where the reference state for dissolved oxygen was an infinitely dilute solution. © 1979 American Society for Metals and the Metallurgical Society of AIME.

引用

页码：565 / 574

页数：10

共 15 条

[1] THERMODYNAMICS + SOLUBILITY OF OXYGEN IN LIQUID METALS FROM EMF MEASUREMENTS INVOLVING SOLID ELECTROLYTES .1. LEAD [J].

ALCOCK, CB ;

BELFORD, TN .

TRANSACTIONS OF THE FARADAY SOCIETY, 1964, 60 (4975) :822-&

[2] THERMODYNAMICS AND SOLUBILITY OF OXYGEN IN LIQUID METALS FROM EMF MEASUREMENTS INVOLVING SOLID ELECTROLYTES .2. TIN [J].

BELFORD, TN ;

ALCOCK, CB .

TRANSACTIONS OF THE FARADAY SOCIETY, 1965, 61 (507P) :443-&

[3] ELECTROCHEMICAL EQUILIBRIUM AND DIFFUSION STUDIES OF LEAD-OXYGEN SYSTEM [J].

CHARLE, H ;

OSTERWALD, J .

ZEITSCHRIFT FUR PHYSIKALISCHE CHEMIE-FRANKFURT, 1976, 99 (4-6) :199-208

[4]

FISCHER WA, 1966, ARCH EISENHUTTENWES, V37, P697

[5] ELECTRONIC CONDUCTIVITIES OF COMMERCIAL ZRO2 + 3 TO 4 WT PCT CAO ELECTROLYTES [J].

FRIEDMAN, LM ;

OBERG, KE ;

BOORSTEI.WM ;

RAPP, RA .

METALLURGICAL TRANSACTIONS, 1973, 4 (01) :69-74

[6]

ISECKE B, 1978, COMMUNICATION

[7]

JACOB KT, 1971, T I MIN MET LONDON C, V80, P32

[8] DIFFUSIVITY AND SOLUBILITY OF OXYGEN IN LIQUID COPPER AND LIQUID SILVER FROM ELECTROCHEMICAL MEASUREMENTS [J].

OBERG, KE ;

FRIEDMAN, LM ;

BOORSTEIN, WM ;

RAPP, RA .

METALLURGICAL TRANSACTIONS, 1973, 4 (01) :61-67

[9]

OTSUKA S, 1972, THESIS OSAKA U

[10]

OTSUKA S, UNPUBLISHED

← 1 2 →