Corrosion inhibition of a carbon steel in 2M H3PO4 medium by "triazine" compounds

被引：39

作者：

Bekkouch, K ^{[1
]}

Aouniti, A

Hammouti, B

Kertit, S

机构：

[1] Fac Sci Oujda, Lab Chim Eaux & Corros, Oujda, Morocco

[2] Fac Sci Oujda, Lab Chim Solide Mineral, Oujda, Morocco

[3] Ecole Normale Super Takaddoum, UREF, Lab Physicochim Mat, AUPELF,LAF 502, Rabat, Morocco

来源：

JOURNAL DE CHIMIE PHYSIQUE ET DE PHYSICO-CHIMIE BIOLOGIQUE | 1999年 / 96卷 / 05期

关键词：

corrosion; inhibition; steel; H3PO4; triazine;

D O I：

10.1051/jcp:1999174

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

The effect of addition of some triazine compounds on the corrosion behaviour of steel in 2M H3PO4 has been studied by weight loss and electrochemical polarisation methods, Both methods showed that the dissolution rate was dependent on the chemical properties and concentration of the product. From comparison of results, it was found that 6-azathymine (T6) is the best inhibitor and its inhibition efficiency reaches a maximum value of 86% at 10(-3)M. Polarisation measurements indicated that T6 acts as cathodic inhibitor by merely blocking the reaction sites without changing the mechanism of the hydrogen evolution reaction, It was found that T6 was adsorbed on steel surface according to a Langmuir isotherm model. The effect of temperature indicated that inhibition efficiency of T6 is dependent on the temperature in the range 25 - 50 degrees C.

引用

页码：838 / 850

页数：13

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