The effect of pH on the efficiency of Isoniazid as corrosion inhibitors of brass in 3.0% NaCl solution

被引：1

作者：

Huang, Xiaohong ^{[1
]}

Zhang, Shengtao ^{[1
]}

Hu, Lianyue ^{[1
]}

机构：

[1] Chongqing Univ, Coll Chem & Chem Engn, Chongqing 400044, Peoples R China

来源：

ADVANCED MATERIALS AND PROCESSES, PTS 1-3 | 2011年 / 311-313卷

关键词：

Isoniazid; Corrosion; Brass; Alkaline solution; Inhibition efficiency; COPPER CORROSION;

D O I：

10.4028/www.scientific.net/AMR.311-313.657

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This paper investigates the Isoniazid as chemical corrosion inhibitors for brass in 3.0% NaCl solution of different pH, employing polarization curves, electrochemical impedance spectroscopy(EIS), weight loss, and SEM. It is found that the inhibition efficiency of Isoniazid enhances with the increasing of the solution pH, from about 71% at pH 6.5 to 92% at pH 10.5. This improvement is attributed to the stronger adsorption of Isoniazid in alkaline solution, to prevent the occuring of the corrosion reaction of brass.

引用

页码：657 / 661

页数：5

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