Gallic acid as a corrosion inhibitor of carbon steel in chemical decontamination formulation

被引：21

作者：

Keny, S. J. ^{[1
]}

Kumbhar, A. G. ^{[1
]}

Thinaharan, C. ^{[2
]}

Venkateswaran, G. ^{[1
]}

机构：

[1] Bhabha Atom Res Ctr, Water & Steam Chem Div, Reactor Water Chem Sect, Bombay 400085, Maharashtra, India

[2] Bhabha Atom Res Ctr, Tech Phys & Prototype Engn Div, Bombay 400085, Maharashtra, India

来源：

CORROSION SCIENCE | 2008年 / 50卷 / 02期

关键词：

gallic acid; dissolution; decontamination; corrosion; inhibition;

D O I：

10.1016/j.corsci.2007.06.024

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Gallic acid (GA) was found to provide corrosion inhibition to carbon steel (CS) at 4.25 mM concentration. Inherent stability to radiation degradation as compared to other reductant and coupled with its anionic nature with respect to removal using ion exchange column makes it suitable for using as both reductant as well as corrosion inhibitor in dilute decontamination formulations operating in the regenerative mode. A formulation containing CA (1.4 mM), EDTA/NTA (1.4 mM), AA (1.0-2.0 mM) and GA (4.25 mM) was found to be more efficient in dissolving hematite and providing 31% corrosion inhibition (passivation) to the CS. (C) 2007 Elsevier Ltd. All rights reserved.

引用

页码：411 / 419

页数：9

共 22 条

[1] The effect of hexadecyl pyridinium bromide and hexadecyl trimethyl ammonium bromide on the behaviour of iron and copper in acidic solutions [J].