The influence of benzoyl hydrazine and some of its substituents on corrosion inhibition of carbon steel in sulphuric acid solution

被引：6

作者：

Gowrani, T ^{[1
]}

Yamuna, J

Parameswari, K

Chitra, S

Selvaraj, A

Subramania, A

机构：

[1] PSGR Krishnammal Coll Women, Coimbatore, Tamil Nadu, India

[2] CBM Coll, Coimbatore, Tamil Nadu, India

[3] Alagappa Univ, Karaikkudi, Tamil Nadu, India

来源：

ANTI-CORROSION METHODS AND MATERIALS | 2004年 / 51卷 / 06期

关键词：

corrosion; corrosion inhibitors; steel; acids; organic compounds;

D O I：

10.1108/00035590410560967

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The influence of synthesised benzoyl hydrazine and some of its substituents on the inhibition of corrosion of carbon steel in 1M sulphuric acid solution were investigated using weight loss, gasometric measurements, potentiodynamic polarisation studies and impedance measurements. Corrosion kinetic parameters clearly revealed the fact that the inhibition of corrosion of carbon steel by these compounds was under mixed control. The effect of temperature on the corrosion behaviour of carbon steel in 1M H2SO4 with optimum concentration of inhibitors was studied in the temperature range 40degrees-60degreesC. The activation energy (E-a) and free energy of adsorption (DeltaG(ads)(0),) were determined for all the inhibitors. The adsorption of these compounds on the carbon steel surface from 1M H2SO4 was observed to obey the Langmuir adsorption isotherm relationship.

引用

页码：414 / 419

页数：6

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