Thermodynamic characterisation of steel corrosion and inhibitor adsorption of pyridazine compounds in 0.5 M H2SO4

被引：162

作者：

Bouklah, M

Benchat, N

Hammouti, B

Aouniti, A

Kertit, S

机构：

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

[2] Fac Sci, Lab Chim Environm & Mat, Oujda, Morocco

[3] Ecole Super Opt Appl, Rabat, Morocco

来源：

MATERIALS LETTERS | 2006年 / 60卷 / 15期

关键词：

pyridazine; inhibition; corrosion; steel; acid; hermodynamic parameters; MILD-STEEL; BENZIMIDAZOLE DERIVATIVES; SULFURIC-ACID; IRON; MEDIA; HCL;

D O I：

10.1016/j.matlet.2005.12.051

中图分类号：

T [工业技术];

学科分类号：

120111 [工业工程];

摘要：

The influence of 5-(2-chlorobenzyl)-6-methylpyridazine-3(2H)-thione (P-1) and 5-(4-chlorobenzyl)-6-methylpyridazine-3(2H)-thione (P-2) on the corrosion of steel in 0.5M H2SO4 solution has been studied using weight loss measurements at various temperature. The inhibiting action is more pronounced with P1 than P2. The inhibition efficiency increases with P I concentration to attain the maximum value of 100% at 5 x 10(-4) M. P1 adsorbs on the surface of steel according to the Langmuir isotherm model. The thermodynamic data of activation and adsorption are determined. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：1901 / 1905

页数：5

共 22 条

[1]

Influence of 2,5-bis(4-dimethylaminophenyl)-1,3,4-thiadiazole on corrosion inhibition of mild steel in acidic media [J].