Results 151 to 160 of about 611 (165)
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Some new bipyrazole derivatives as corrosion inhibitors for C38 steel in acidic medium
Research on Chemical Intermediates, 2012Three new bipyrazole derivatives, ethyl 5,5′-dimethyl-1′H-1,3′-bipyrazole-4-carboxylate (Bip1), 1,1′,5,5′-tetramethyl-1H,1′H-3,3′-bipyrazole (Bip2), and 3-(bromomethyl)-5,5′-dimethyl-1′H-1,3′-bipyrazole (Bip3), have been synthesized and used as additives to protect C38 steel from corrosion in aerated 1 M HCl solution, using the various corrosion ...
H. Zarrok +8 more
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Journal of Failure Analysis and Prevention, 2020
The influence of omeprazole on C38 steel corrosion in HCl solutions (1, 3, 5 M) was evaluated by weight loss and electrochemical techniques. Density-functional theory (DFT) and molecular dynamic (MD) simulations were also used. The weight loss experiment shows that the maximum inhibition efficiency achieved a value of 98.36% in the presence of 5 × 10−3
Kouri Hossam +11 more
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The influence of omeprazole on C38 steel corrosion in HCl solutions (1, 3, 5 M) was evaluated by weight loss and electrochemical techniques. Density-functional theory (DFT) and molecular dynamic (MD) simulations were also used. The weight loss experiment shows that the maximum inhibition efficiency achieved a value of 98.36% in the presence of 5 × 10−3
Kouri Hossam +11 more
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INVESTIGATION OF ADSORPTION AND INHIBITIVE EFFECT OF CALIXARENE DERIVATIVE NEWLY SYNTHESIZED TOWARDS C38 STEEL IN MOLARHCl [PDF]
Surface Review and Letters, 2009 The focus of this study is to synthesize a new calixarene derivative namely calix[6]arene (C21) and to test its performance as corrosion inhibitor of C38 steel in molar HCl at 308 K. Polarization and weight loss measurements were used. Weight loss tests show that C21 retards until to stop corrosion phenomenon at 5 × 10-5M .
R. SOUANE +5 more
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Research on Chemical Intermediates, 2012
Methyl 2-(bis((3,5-dimethyl-1H-pyrazol-1-yl)methyl)amino) acetate, BT36, and methyl 2-(bis((3,5-dimethyl-1H-pyrazol-1-yl)methyl)amino)-3-(1H-indol-3-yl)propanoate, BT 43, have been synthesized. Investigation by weight-loss measurement and use of electrochemical techniques revealed the compounds are very effective inhibitors of corrosion of C38 steel in
N. Missoum +7 more
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Methyl 2-(bis((3,5-dimethyl-1H-pyrazol-1-yl)methyl)amino) acetate, BT36, and methyl 2-(bis((3,5-dimethyl-1H-pyrazol-1-yl)methyl)amino)-3-(1H-indol-3-yl)propanoate, BT 43, have been synthesized. Investigation by weight-loss measurement and use of electrochemical techniques revealed the compounds are very effective inhibitors of corrosion of C38 steel in
N. Missoum +7 more
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THERMODYNAMIC STUDY OF CORROSION AND INHIBITOR ADSORPTION PROCESSES ONTO C38 STEEL/PIPERAZINES/PHOSPHORIC ACID SYSTEMS [PDF]
Surface Review and Letters, 2009 This paper describes the inhibition effect of 1-benzyl piperazine (P1) and bis(1-benzyl piperazine) thiuram disulfide (P2) towards the corrosion of C38 steel in 5.5 M H 3 PO 4 solution by potentiodynamic polarization and weight loss methods. The influence of inhibitor concentration and temperature on inhibitory behavior of P2 were investigated.
A. OUSSLIM +4 more
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Research on Chemical Intermediates, 2012
The corrosion inhibition properties of horehound (Marrubium vulgare L.) extract (HE) in 1 M hydrochloric acid medium was carried out using electrochemical methods (polarization curve and electrochemical impedance spectroscopy). Experiments were performed by concentration of the inhibitor and temperature effect.
Dris Ben Hmamou +6 more
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The corrosion inhibition properties of horehound (Marrubium vulgare L.) extract (HE) in 1 M hydrochloric acid medium was carried out using electrochemical methods (polarization curve and electrochemical impedance spectroscopy). Experiments were performed by concentration of the inhibitor and temperature effect.
Dris Ben Hmamou +6 more
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Protection of C38 Steel in Acidic Solution by Eucalyptus Sidroxylon Essential Oil
2023Koursaoui, L. +10 more
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