El Ouadi, Y. and Elmsellem, H. and El Fal, M. and Sebbar, N.K. and Bouyanzer, A. and Rmili, R. and Essassi, E.M. and El Mahi, B. and Majidi, L. and Hammouti, B. (2016) Effect of 1,5-di(prop-2-ynyl)-1H-pyrazolo3,4-dpyrimidine-4(5H)-thione on inhibition of mild steel corrosion in 1M HCl. Der Pharma Chemica, 8 (1). pp. 365-373.

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Abstract

The effect of addition of 1,5-di(prop-2-ynyl)-1H-pyrazolo3,4-dpyrimidine-4(5H)-thione (P1) on the corrosion of steel in hydrochloric acid 1M has been studied by weight loss measurements, potentiodynamic and EIS measurements. The corrosion rates of the steel decrease with the increase of the inhibitor concentration, while the inhibition efficiencies increase. The addition of 1,5-di(prop-2-ynyl)-1H-pyrazolo3,4-dpyrimidine-4(5H)-thione (P1) enhances the inhibition efficiency considerably. The presence of this inhibitor increases the degree of surface coverage. E (%) obtained from the various methods is in good agreement. Polarisation measurements show also that the 1,5-di(prop-2-ynyl)-1H-pyrazolo3,4-dpyrimidine-4(5H)-thione act as mixed type inhibitor.

Item Type: Article
Uncontrolled Keywords: 1,5 di(prop 2 ynyl) 1h pyrazolo3,4 dpyrimidine 4(5h) thione; hydrochloric acid; ketone; unclassified drug, adsorption; analytical parameters; Article; concentration (parameters); controlled study; corrosion; electrochemical analysis; electrochemical impedance spectroscopy; inhibition efficiency; polarization; potentiodynamic polarization; temperature; weight
Subjects: Chemistry
Divisions: SCIENTIFIC PRODUCTION > Chemistry
Depositing User: Administrateur Eprints Administrateur Eprints
Last Modified: 31 Jan 2020 15:45
URI: http://eprints.umi.ac.ma/id/eprint/1898

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