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ZHAN Feng-tao, GAO Tong-hai, YANG Zheng, DING Peng-peng, ZHOU Xin-yuan, LÜ Zhi-feng. Synthesis and Inhibition Performace of a Hydrazine Bis-Schiff Base as Acidification Corrosion Inhibitor[J]. Corrosion & Protection, 2017, 38(1): 45-49. DOI: 10.11973/fsyfh-201701010
Citation: ZHAN Feng-tao, GAO Tong-hai, YANG Zheng, DING Peng-peng, ZHOU Xin-yuan, LÜ Zhi-feng. Synthesis and Inhibition Performace of a Hydrazine Bis-Schiff Base as Acidification Corrosion Inhibitor[J]. Corrosion & Protection, 2017, 38(1): 45-49. DOI: 10.11973/fsyfh-201701010

Synthesis and Inhibition Performace of a Hydrazine Bis-Schiff Base as Acidification Corrosion Inhibitor

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  • Received Date: July 21, 2015
  • A new Schiff base 1,1'-dicinnamylidene-hydrazine (DCH) as acid inhibitor was prepared through condensation reaction using hydrazine hydrate and cinnamaldehyde. The chemical structure of DCH was confirmed by elementary analysis, Fourier transform infrared (FI-RT) and nuclear magnetic resonance (NMR) spectroscopy. The corrosion inhibitive performance of the inhibitor for N80 steel in 15% HCl solution were investigated by static weight loss method and electrochemical methods. The results indicated that DCH was a mixed acid inhibitor and could effectively inhibit the corrosion in acid solution by forming protective layer on N80 surface. The corrosion rate and inhibitive efficiency reached 2.27 g·m-2·h-1 and 99.81% respectively, when the dosage of DCH was 0.75%. The adsorption process of DCH ont the steel surface obeyed Langmuir adsorption isotherm.
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