Corrosion Inhibition of Copper in Sea Water Using Derivatives of Tetrazoles and Thiosemicarbazide

Title:Corrosion Inhibition of Copper in Sea Water Using Derivatives of Tetrazoles and Thiosemicarbazide

Volume: 8 Issue: 1

Author(s): Abdul-Khalek Younes, Ibrahim Ghayad*, Emel B. Ömer and Fatma Kandemirli

Affiliation:

• Central Metallurgical Research & Development Institute, Helwan,Egypt

Keywords: Corrosion inhibition, copper, sea water, thiosemicarbazides, tetrazoles, inhibition efficiency.

Abstract: Background: The present paper investigates the corrosion inhibition of copper using six corrosion inhibitors namely: 4-phenyl thiosemicarbazide (PTSC), Salicylaldehydethiosemicarbazone (STSC). 5-Mercapto-1-methyle tetrazole (MMT), 5-(3-Pyridyl)-1H-tetrazole (PyTA), 5-phenyl-1-Htetrazole (PTA) and 5-Amino-tetrazole monohydrate (ATA).

Method: Copper samples were tested using potentiodynamic polarization technique in the absence and in the presence of corrosion inhibitors.

Results: Results show that tetrazole derivatives show high inhibition efficiencies (≥90%) in comparison to thiosemicarbazide derivatives (<80%). The highest inhibition efficiency of 92.9% was shown by ATAH at 2000 ppm. The order of inhibition efficiencies of the tested compounds was as follows: PTA≈ATA >PyTA> MMT > STC > PTSC.

Cite this article as:

Younes Abdul-Khalek, Ghayad Ibrahim*, Ömer B. Emel and Kandemirli Fatma, Corrosion Inhibition of Copper in Sea Water Using Derivatives of Tetrazoles and Thiosemicarbazide, Innovations in Corrosion and Materials Science (Discontinued) 2018; 8 (1) . https://dx.doi.org/10.2174/2352094908666180830123952

DOI https://dx.doi.org/10.2174/2352094908666180830123952	Print ISSN 2352-0949
Publisher Name Bentham Science Publisher	Online ISSN 2352-0957