Inhibitive Effect of 2-[4-(Dimethylamino) Benzylidene] Hydrazinecarbothioamide on Corrosion of Mild Steel in Acidic Solution

Prithvi; Preethi Kumari; Suma A. Rao

doi:10.3103/S1068375519040112

Inhibitive Effect of 2-[4-(Dimethylamino) Benzylidene] Hydrazinecarbothioamide on Corrosion of Mild Steel in Acidic Solution

Prithvi, Preethi Kumari, Suma A. Rao^*

^*Corresponding author for this work

Department of Chemistry, Manipal Institute of Technology, Manipal

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

Abstract: The inhibition efficiency and adsorption of 2-[4-(dimethylamino) benzylidene] hydrazinecarbothioamide (DABHC) on the corrosion behaviour of mild steel in 0.5M H₃PO₄ and H₂SO₄ solutions has been studied in the temperature range (30–50°C) using potentiodynamic polarization (PDP) and electrochemical impedance spectroscopy (EIS) techniques. The inhibition effectiveness of DABHC increases with increase in its concentration and decreases with increase in temperature. The results indicate that DABHC functions as a mixed type inhibitor and followed Langmuir’s adsorption isotherm. The corrosion inhibition of DABHC takes place through physisorption. The surface of the specimen was analysed using scanning electron microscope (SEM) and atomic force microscopy (AFM).

Original language	English
Pages (from-to)	481-491
Number of pages	11
Journal	Surface Engineering and Applied Electrochemistry
Volume	55
Issue number	4
DOIs	https://doi.org/10.3103/S1068375519040112
Publication status	Published - 01-07-2019

All Science Journal Classification (ASJC) codes

Surfaces and Interfaces
Surfaces, Coatings and Films
Industrial and Manufacturing Engineering

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10.3103/S1068375519040112

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title = "Inhibitive Effect of 2-[4-(Dimethylamino) Benzylidene] Hydrazinecarbothioamide on Corrosion of Mild Steel in Acidic Solution",

abstract = "Abstract: The inhibition efficiency and adsorption of 2-[4-(dimethylamino) benzylidene] hydrazinecarbothioamide (DABHC) on the corrosion behaviour of mild steel in 0.5M H3PO4 and H2SO4 solutions has been studied in the temperature range (30–50°C) using potentiodynamic polarization (PDP) and electrochemical impedance spectroscopy (EIS) techniques. The inhibition effectiveness of DABHC increases with increase in its concentration and decreases with increase in temperature. The results indicate that DABHC functions as a mixed type inhibitor and followed Langmuir{\textquoteright}s adsorption isotherm. The corrosion inhibition of DABHC takes place through physisorption. The surface of the specimen was analysed using scanning electron microscope (SEM) and atomic force microscopy (AFM).",

author = "Prithvi and Preethi Kumari and Rao, {Suma A.}",

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AU - Prithvi,

AU - Kumari, Preethi

AU - Rao, Suma A.

PY - 2019/7/1

Y1 - 2019/7/1

N2 - Abstract: The inhibition efficiency and adsorption of 2-[4-(dimethylamino) benzylidene] hydrazinecarbothioamide (DABHC) on the corrosion behaviour of mild steel in 0.5M H3PO4 and H2SO4 solutions has been studied in the temperature range (30–50°C) using potentiodynamic polarization (PDP) and electrochemical impedance spectroscopy (EIS) techniques. The inhibition effectiveness of DABHC increases with increase in its concentration and decreases with increase in temperature. The results indicate that DABHC functions as a mixed type inhibitor and followed Langmuir’s adsorption isotherm. The corrosion inhibition of DABHC takes place through physisorption. The surface of the specimen was analysed using scanning electron microscope (SEM) and atomic force microscopy (AFM).

AB - Abstract: The inhibition efficiency and adsorption of 2-[4-(dimethylamino) benzylidene] hydrazinecarbothioamide (DABHC) on the corrosion behaviour of mild steel in 0.5M H3PO4 and H2SO4 solutions has been studied in the temperature range (30–50°C) using potentiodynamic polarization (PDP) and electrochemical impedance spectroscopy (EIS) techniques. The inhibition effectiveness of DABHC increases with increase in its concentration and decreases with increase in temperature. The results indicate that DABHC functions as a mixed type inhibitor and followed Langmuir’s adsorption isotherm. The corrosion inhibition of DABHC takes place through physisorption. The surface of the specimen was analysed using scanning electron microscope (SEM) and atomic force microscopy (AFM).

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Inhibitive Effect of 2-[4-(Dimethylamino) Benzylidene] Hydrazinecarbothioamide on Corrosion of Mild Steel in Acidic Solution

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