A Novel Hydrazinecarbothioamide as a Potential Corrosion Inhibitor for Mild Steel in HCl

被引：85

作者：

Al-Amiery, Ahmed A. ^{[1
,2
]}

Kadhum, Abdul Amir H. ^{[1
]}

Mohamad, Abu Bakar ^{[1
]}

Junaedi, Sutiana ^{[1
]}

机构：

[1] Univ Kebangsaan Malaysia, Dept Chem & Proc Engn, Bangi 43000, Selangor, Malaysia

[2] Univ Technol UOT, Dept Appl Sci, Div Appl Chem, Baghdad 10001, Iraq

来源：

MATERIALS | 2013年 / 6卷 / 04期

关键词：

mild steel; thiosemicarbazide; EIS; HCB; corrosion inhibition; HYDROCHLORIC-ACID; CARBON-STEEL; SCHIFF-BASE; DERIVATIVES; DRUGS; BEHAVIOR; COPPER; MEDIA;

D O I：

10.3390/ma6041420

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

2-(1-methyl-4-((E)-(2-methylbenzylidene)amino)-2-phenyl-1H-pyrazol-3(2H)-ylidene)-hydrazineecarbothioamide (HCB) was synthesized as a corrosion inhibitor from the reaction of 4-aminoantipyrine, thiosemicarbazide and 2-methylbenzaldehyde. The corrosion inhibitory effects of HCB on mild steel in 1.0 M HCl were investigated using potentiodynamic polarization (PDP) and electrochemical impedance spectroscopy (EIS). The results showed that HCB inhibited mild steel corrosion in acidic solution and inhibition efficiency increased with an increase in the concentration of the inhibitor. The inhibition efficiency was up to 96.5% at 5.0 mM. Changes in the impedance parameters suggested that HCB adsorbed on the surface of mild steel, leading to the formation of a protective film. The novel corrosion inhibitor synthesized in the present study was characterized using Fourier transform infrared spectroscopy (FTIR) and nuclear magnetic resonance (NMR) spectral data.

引用

页码：1420 / 1431

页数：12

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