Substituted uracils as corrosion inhibitors for copper in 3% NaCl solution

被引：88

作者：

Dafali, A ^{[1
]}

Hammouti, B

Mokhlisse, R

Kertit, S

机构：

[1] Univ Mohammed 1 Er, Fac Sci, Lab Chim Eaux & Corros, Oujda 524, Morocco

[2] Ecole Normale Super Takaddoum, Lab Physicochim Mat, AUPELF, UREF, Rabat, Morocco

[3] Fac Sci Semlalia, Lab Spect Mol, Marrakech, Morocco

来源：

CORROSION SCIENCE | 2003年 / 45卷 / 08期

关键词：

copper; uracils; 3% NaCl solution; corrosion; inhibition;

D O I：

10.1016/S0010-938X(02)00255-X

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Substituted uracils were tested as corrosion inhibitors of copper in 3% NaCl medium using electrochemical polarisation, impedance measurements and non-electrochemical techniques (weight loss, IR and UV-visible). This study permitted to follow the evolution of the inhibitory effect of the uracil derivatives, according to their substituents, on copper in 3% NaCl medium. Comparison of results showed that dithiouracil (DTUr) was the best inhibitor. The maximum inhibition efficiency reached 98% at 10(-3) M. DTUr adsorbs on the copper surface according to the Frumkin isotherm model. (C) 2003 Elsevier Science Ltd. All rights reserved.

引用

页码：1619 / 1630

页数：12

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