| 盐酸溶液中三乙烯四胺基双二硫代甲酸钠对黄铜的缓蚀作用 |
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| 引用本文： | 岳忠文,廖强强,陈亚琼.盐酸溶液中三乙烯四胺基双二硫代甲酸钠对黄铜的缓蚀作用[J].上海电力学院学报,2009,25(5):465-468. |
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| 作者姓名： | 岳忠文 廖强强 陈亚琼 |
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| 作者单位： | 上海电力学院,能源与环境工程学院,上海,200090 |
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| 基金项目： | 上海市重点学科建设项目 |
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| 摘 要： | 采用失重法、电化学极化曲线和电化学阻抗谱考察了pH=2的HCl溶液中三乙烯四胺基双二硫代甲酸钠（DTC-TETA）对黄铜的缓蚀作用.挂片实验表明,20 mg/L的DTC-TETA对黄铜的缓蚀效率可达88.2%.电化学测量表明,DTC-TETA使黄铜的自腐蚀电位负移至-115.2 mV,抑制了黄铜电极的阴极还原过程,提高了黄铜电极表面的电荷转移电阻,具有较好的缓蚀效果.
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| 关 键 词： | 黄铜 缓蚀 极化曲线 电化学阻抗 |
| 收稿时间： | 2009/6/18 0:00:00 |
Inhibitive Effect of a Sodion Triethylenetetramine-bisDithiocarbamate on Brass in HCl Solution |
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| YUE Zhong-wen,LIAO Qiang-qiang and CHEN Ya-qiong.Inhibitive Effect of a Sodion Triethylenetetramine-bisDithiocarbamate on Brass in HCl Solution[J].Journal of Shanghai University of Electric Power,2009,25(5):465-468. |
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| Authors: | YUE Zhong-wen LIAO Qiang-qiang and CHEN Ya-qiong |
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| Affiliation: | ( School of Thermal Power and Environmental Enginnering, Shanghai University of Electric Power, Shanghai 200090, China) |
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| Abstract: | The corrosion inhibition action of Sodion Triethylenetetramine-bisDithiocarbamate （DTC-TETA） for brass in pH = 2 HC1 solution is investigated by potentiodynamic polarization and electrochemical impedance spectroscopy. Coupon tests show that the best inhibition efficiency is 88.2% by using DTC-TETA at a concentration of 20 mg/L. Electrochemical tests show that DTC- TETA makes the corrosion potential shift negative to -115.2 mV and restrains process of cathodic reduction and increases greatly the charge transfer resistance of brass electrode. It has good corrosion inhibitive effect on brass in HC1 solution. |
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| Keywords: | brass corrosion inhibition polarization electrochemical impedance spectroscopy |
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