Effect of some tripodal bipyrazolic compounds on C38 steel corrosion in hydrochloric acid solution

被引：78

作者：

Zerga, B. ^{[1
]}

Attayibat, A. ^{[2
]}

Sfaira, M. ^{[1
]}

Taleb, M. ^{[1
]}

Hammouti, B. ^{[3
]}

Ebn Touhami, M. ^{[4
]}

Radi, S. ^{[2
]}

Rais, Z. ^{[1
]}

机构：

[1] Fac Sci Dhar El Mahraz, Lab Anal Physicochim & Mat Catalyt Environm, Atlas 30000, Fes, Morocco

[2] Univ Mohammed Premier, LCOMPN URAC25, Fac Sci, Oujda 60000, Morocco

[3] Univ Mohammed Premier, LCAE URAC18, Fac Sci, Oujda 60000, Morocco

[4] Fac Sci, Lab Electrochim Corros & Environm, Kenitra 14000, Morocco

来源：

JOURNAL OF APPLIED ELECTROCHEMISTRY | 2010年 / 40卷 / 09期

关键词：

C38; steel; Bipyrazolic tripod; Hydrochloric acid; Adsorption; 1 M HCl; 1 M HCL; MILD-STEEL; INHIBITION; MEDIA; TEMPERATURE; DERIVATIVES; ADSORPTION; IRON;

D O I：

10.1007/s10800-010-0164-0

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The corrosion inhibition of C38 steel in molar HCl by N,N-bis[2-(3,5-dimethyl-1H-pyrazol-1-yl)ethyl]buthylamine (P1) and 5-{N,N-bis[2-(3,5-dimethyl-1H-pyrazol-1-yl)ethyl] amino} pentanol (P2) has been investigated at 308 K using electrochemical and weight loss measurements. Measurements show that these compounds act as good inhibitors without changing the mechanism of the corrosion process. Moreover, the inhibiting efficiency increases with the increase in concentration of the studied inhibitors. Compound P2 showed better protection properties even at relatively higher temperatures when compared to P1. The associated activation corrosion and free adsorption energies have been determined. P1 and P2 are adsorbed on the C38 steel surface according to a Langmuir isotherm adsorption model.

引用

页码：1575 / 1582

页数：8

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