Aromatic triazoles as corrosion inhibitors for mild steel in acidic environments

被引：90

作者：

Quraishi, MA ^{[1
]}

Sardar, R ^{[1
]}

机构：

[1] Aligarh Muslim Univ, Fac Engn & Technol, Dept Appl Chem, Corros Res Lab, Aligarh 202002, Uttar Pradesh, India

来源：

CORROSION | 2002年 / 58卷 / 09期

关键词：

acidic environments; aromatic triazoles; concentration; hydrochloric acid; inhibitors; immersion time; mild steel; potentidynamic polarization; sulfuric acid; temperature; weight loss;

D O I：

10.5006/1.3277657

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

3-hydroxyphenyl-4-phenyl-5-mercapto-1,2,4,triazole (HPMT): 3-aminophenyl-4-phenyl-5-mereapto-1,2,4,triazole (APMT), 3,4-diphenyL-5-mercapto-1,2,4-triazole (DPMT); and 3-cinnamyl-4-phenyL-5-mercapto-1,2,4,triazole (CPMT) were synthesized in the laboratory, and their influence on the inhibition of corrosion of mild steel in IN hydrochloric acid (HCl) and 1 N sulfuric acid (H2SO4) was investigated by weight loss and potentiodynamic polarization techniques. The inhibition efficiency of these compounds was found to vary with concentration, temperature, and immersion time, Good inhibition efficiency was evidenced in both acid solutions. The adsorption of these compounds on the steel surface for both acids was found to obey Temkin's adsorption isotherm. The potentiodynamic polarization data showed that the compounds studied were filming (adsorption) inhibitors.

引用

页码：748 / 755

页数：8

共 21 条

[1] Application of the kinetic-thermodynamic model for inhibition of acid corrosion of steel by inhibitors containing sulfur and nitrogen [J].