Sodium tungstate as a corrosion inhibitor of cold rolled steel in peracetic acid solution

被引：74
|
作者：
Qu, Qing [1 ]
Li, Lei [2 ]
Bai, Wei [3 ]
Jiang, Shuan [1 ]
Ding, Zhongtao [1 ]
机构：
[1] Yunnan Univ, Sch Chem Sci & Technol, Kunming 650091, Peoples R China
[2] Yunnan Univ, Lab Conservat & Utilizat Bioresources, Kunming 650091, Peoples R China
[3] Yunnan Nationalities Univ, Dept Chem, Kunming 650092, Peoples R China
来源：
CORROSION SCIENCE | 2009年 / 51卷 / 10期
关键词：
Steel; Weight loss; Polarization; EIS; Acid inhibition; MILD-STEEL; STAINLESS-STEEL; OXYGEN EVOLUTION; WASTE-WATER; BEHAVIOR; MOLYBDATE; ALLOY; DIOXIDE; DROP;
D O I：
10.1016/j.corsci.2009.06.029
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Sodium tungstate (Na2WO4) as a corrosion inhibitor of cold rolled steel (CRS) in peracetic acid (PAA) solution was investigated by weight loss, potentiodynamic polarization, and electrochemical impedance spectroscopy (EIS). All the data obtained from the experiments indicate that Na2WO4 is capable of inhibiting the corrosion of CRS in PAA solution. Polarization data show that Na2WO4 behaves as an anodic type inhibitor in PAA solution. Adsorption of Na2WO4 is found to follow the Temkin adsorption isotherm. The calculated free energy of adsorption (Delta G(ads)) Probably indicates that both physical adsorption and chemical adsorption may take place in the adsorption process. (C) 2009 Elsevier Ltd. All rights reserved.
引用
收藏
页码：2423 / 2428
页数：6
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