Effect of 1 H-Benzimidazole Derivatives on Zinc by Treatments with Sodium Phosphate and Silicate in 0.5 M NaCl solution

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Yanardağ T.

INDIAN JOURNAL OF SCIENCE AND TECHNOLOGY, vol.12, no.15, pp.1-8, 2019 (ESCI)

  • Publication Type: Article / Article
  • Volume: 12 Issue: 15
  • Publication Date: 2019
  • Journal Name: INDIAN JOURNAL OF SCIENCE AND TECHNOLOGY
  • Journal Indexes: Emerging Sources Citation Index (ESCI)
  • Page Numbers: pp.1-8
  • Ankara University Affiliated: Yes

Abstract

In this study, the inhibitory effect of 1H-benzimidazole, 2-methyl-1H-benzimidazole and 5-nitrobenzimidazole on zinc have been investigated. Method: For this purpose, we used current-potential and Electrochemical Impedance Spectroscopy (EIS) methods in 0.5M NaCl solution at 25°C. Zinc polished with sand paper, etched 20 minute in 0.15 M HCl solution, cleaned with distilled water immersed for pre-treatment with sodium hydrogen phosphate (Na2HPO4.12H2O, pH 5.7) and sodium silicate (Na2SiO2) solution. Findings: Pre-treated coatings on the zinc increased inhibition effects of BIM derivatives. Inhibition efficiency was approximately 98%, for 1H-benzimidazole and 5-nitrobenzimidazole.