INFLUENCE OF SULFUR ON PASSIVATION OF IRON IN ALKALI SOLUTIONS

被引：11

作者：

JAYALAKSHMI, M

MURALIDHARAN, VS

机构：

[1] Central Electrochemical Research, Inst, Karaikudi, IN

来源：

CORROSION | 1992年 / 48卷 / 11期

关键词：

ALKALI SOLUTIONS; CYCLIC VOLTAMMETRY; IRON-SULFUR COMPLEXES;

D O I：

10.5006/1.3315894

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The presence of elemental sulfur caused pronounced changes in the passivation of iron. In higher alkali solutions, soluble divalent iron sulfur complexes are formed involving S-2(2-) ions. The trivalent oxides dissolve forming trivalent iron sulfur complexes, which cause complete passivation on further polarization of the surface by forming the polysulfide film. The reduction of the oxide film is found to involve sulfide ions. FeOOH reduction to soluble divalent iron is enhanced by the presence of sulfur.

引用

页码：918 / 923

页数：6

共 25 条

[1]

[Anonymous], 1966, ATLAS ELECTROCHEMICA

[2]

BENNEN RA, 1967, AM J SCI, V265, P773

[3] IRON SULFIDES FORMED FROM AQUEOUS SOLUTION AT LOW TEMPERATURES AND ATMOSPHERIC PRESSURE [J].