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

Turan Yanarda

doi:10.17485/ijst/2019/v12i15/31248

Article

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

VIEWS 739
PDF 217

Abstract
Full-Text HTML
Full-Text PDF
How to Cite

Indian Journal of Science and Technology

DOI: 10.17485/ijst/2019/v12i15/31248

Year: 2019, Volume: 12, Issue: 15, Pages: 1-8

Original Article

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

Turan Yanardağ^*

Ankara University Science Faculty Department of Chemistry, Tandoğan, 06100, Ankara, Turkey; [email protected]

*Author for correspondence
Turan Yanardağ
Ankara University Science Faculty Department of Chemistry, Tandoğan, 06100, Ankara, Turkey. Email: [email protected]

This work is licensed under a Creative Commons Attribution 4.0 International License.

Abstract

Objectives: 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 (Na₂ HPO₄.12H₂O, 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.

Keywords: Coatings, Corrosion, Organic Inhibitors, Phosphate, Silicate