Corrosion inhibition of steel by 1‐phenyl 5‐mercapto 1,2,3,4‐ tetrazole in acidic environments (0.5 M H₂SO₄ and 1/3 M H₃PO₄)

Abstract

1‐phenyl 5‐mercarpto 1,2,3,4‐tetrazole (PMT) was tested as an inhibitor for the corrosion of steel in 0.5 M H₂SO₄ and 1/3 M H₃PO₄ by weight‐loss and electrochemical methods. Results obtained showed that the inhibition efficiency of PMT increased with the increase of inhibitor concentration and reached an optimum value (98 per cent) at 10⁻³ M in H₂SO₄ and H₃PO₄ solutions. The effect of the temperature on the kinetic parameters of corrosion of steel in the aqueous solutions of H₂SO₄ and H₃PO₄ with and without addition of PMT has been studied and the associated parameters were determined.

Citation

Bensajjay, F., Alehyen, S., El Achouri, M. and Kertit, S. (2003), "Corrosion inhibition of steel by 1‐phenyl 5‐mercapto 1,2,3,4‐ tetrazole in acidic environments (0.5 M H₂SO₄ and 1/3 M H₃PO₄)", Anti-Corrosion Methods and Materials, Vol. 50 No. 6, pp. 402-409. https://doi.org/10.1108/00035590310501558