ANODIC DESORPTION OF INHIBITORS Ⅳ．INHIBITOR-CONCENTRATION-DEPENDENT EXTREME BEHAVIOR

J Chin Soc Corr Pro

1996, Vol. 16

Issue (1): 15-19 DOI:

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ANODIC DESORPTION OF INHIBITORS Ⅳ．INHIBITOR-CONCENTRATION-DEPENDENT EXTREME BEHAVIOR

Wang Jia;Cao Chuan

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Abstract In acidic solutions containing propargyl derivative inhibitors,the changes in electrochemical parameters and inhibition performance with inhibitor concentrations were investigated using electrochemical measurements．It was found that in sulfuric acid solution there existed extreme values of double layer the contrary;this kind of extreme phenomenon was not observed in hydrochloric acid medium．By analyzing the changes in desorption potentials and corrosion potentials with inhibitor concentrations,the cause for this extreme phenomenon was demonstrated to be inhibitor desorption occurring around corrosion potential in sulfuric acid solution as the inhibitor concentration reached a certain value．

Key words: Inhibitor Extreme behaviour Desorption

Received: 25 February 1996

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Wang Jia;Cao Chuan. ANODIC DESORPTION OF INHIBITORS Ⅳ．INHIBITOR-CONCENTRATION-DEPENDENT EXTREME BEHAVIOR. J Chin Soc Corr Pro, 1996, 16(1): 15-19.

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https://www.jcscp.org/EN/ OR https://www.jcscp.org/EN/Y1996/V16/I1/15

[1]EpelboinI,etal．Proc．ASTMSymp．“ProgressinElectrochemicalCorrosionTesting”,Eds．MansfeldF,BertocciUMay1979,150-1662WangJia,CaoChunan,LiangFeng．Proc．7thAsianPacificCorrosionControlConference,Beijing,ChineseSocietyofCorrosionandProtection,1991August19-23;991-9943王佳,曹楚南等．中国腐蚀与防护学报,1995,15(4):2414王佳,曹楚南等．中国腐蚀与防护学报,1991;11(3):2795王佳,曹楚南．中国腐蚀与防护学报,1995,15(4):2476王佳,曹楚南·中国腐蚀与防护学报,1996;16(1):97曹楚南．腐蚀科学与防护技术,1990,2(1):1

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