The cooperative inhibition effects of alkaline earth metal ions and EDTA on the corrosion of pure aluminum in an alkaline solution

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	The cooperative inhibition effects of alkaline earth metal ions and EDTA on the corrosion of pure aluminum in an alkaline solution
	H. B. Shao; X. Y. Wang; J. M. Wang; J. B. Wang; J. Q. Zhang; C. N. Cao
	2006
Source Publication	Acta Physico-Chimica Sinica
ISSN	1000-6818
Volume	22 Issue:3 Pages:312-315
Abstract	The cooperative effects of alkaline earth metal ions and EDTA (ethylenediamine tetraacetic acid) on the corrosion inhibition of pure aluminum in 4 mol center dot L-1 KOH solution were investigated by hydrogen collection, polarization curve and electrochemical impedance spectroscopy (EIS). It was found that aluminum exhibits minimum corrosion rate in 4 mol center dot L-1 KOH solution containing 0.02 mol center dot L-1 EDTA, saturated Ca(OH)(2) and saturated Sr(OH)(2). EDAX analysis showed that alkaline earth metal ions and EDTA have no contribution to the formation of the surface film on aluminum. Therefore the inhibition effect may be caused by the adsorption of the inhibitor on aluminum surface. This fact indicates that these two ions act as interface inhibitors rather than inter-phase ones.
description.department	zhejiang univ, dept chem, hangzhou 310027, peoples r china. chinese acad sci, inst met res, state key lab corros & protect, shenyang 110015, peoples r china.;shao, hb (reprint author), zhejiang univ, dept chem, hangzhou 310027, peoples r china;dhx318@zjuem.zju.edu.cn
Keyword	Pure Aluminum Alkaline Solution Corrosion Alkaline Earth Metal Edta Inhibitor Galvanic Anodes Batteries Behavior Dissolution Additives Grades Alloy
URL	查看原文
WOS ID	WOS:000236122300011
Citation statistics	Cited Times:10[WOS] [WOS Record] [Related Records in WOS]
Document Type	期刊论文
Identifier	http://ir.imr.ac.cn/handle/321006/34450
Collection	中国科学院金属研究所
Recommended Citation GB/T 7714	H. B. Shao,X. Y. Wang,J. M. Wang,et al. The cooperative inhibition effects of alkaline earth metal ions and EDTA on the corrosion of pure aluminum in an alkaline solution[J]. Acta Physico-Chimica Sinica,2006,22(3):312-315.
APA	H. B. Shao,X. Y. Wang,J. M. Wang,J. B. Wang,J. Q. Zhang,&C. N. Cao.(2006).The cooperative inhibition effects of alkaline earth metal ions and EDTA on the corrosion of pure aluminum in an alkaline solution.Acta Physico-Chimica Sinica,22(3),312-315.
MLA	H. B. Shao,et al."The cooperative inhibition effects of alkaline earth metal ions and EDTA on the corrosion of pure aluminum in an alkaline solution".Acta Physico-Chimica Sinica 22.3(2006):312-315.

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