Corrosion Inhibition of Cationic Surfactant on Steel in Acid Medium and Synergistic Effect of the Presence of Chloride Ions

2009 ◽  
Keyword(s):  
Synergistic Effect ◽  
Acid Medium ◽  
Corrosion Inhibition ◽  
Cationic Surfactant ◽  
Chloride Ions

scholarly journals Synergistic Effect of Thiourea-Zn2+ and L-Phenylalanine on the Inhibition of Corrosion of Mild Steel in Acid Medium

2019 ◽  
Vol 7 (2) ◽  
pp. 72-77
Author(s):  
M.B. Geetha ◽  
◽  
J. Sathish ◽  
S. Rajendran ◽  
◽  
...  
Keyword(s):  
Synergistic Effect ◽  
Mild Steel ◽  
Acid Medium ◽  
Corrosion Inhibition ◽  
Metal Surface ◽  
Inhibition Efficiency ◽  
Protective Film ◽  
Surface Smoothness ◽  
Polarization Study ◽  
Corrosion Inhibition Efficiency

The formulation consisting of 100 ppm Thiourea, 25 ppm Zn2+ and 250 ppm of L-Phenylalanine has 95% corrosion inhibition efficiency with a synergistic effect among Thiourea, L-Phenylalanine and Zn2+ ions. Polarization study shows that this formulation as a mixed inhibitor. FTIR spectra exposed the presence of Fe2+-Thiourea, Fe2+-L-Phenylalanine complex and Zn(OH)2 in protective film. AFM study confirmed the metal surface smoothness following engrossed in the inhibitor and the presence of formed protective film on the metal surface.

CORROSION INHIBITION OF ZINC IN HYDROCHLORIC ACID MEDIUM USING UREA INHIBITOR

2007 ◽  
Vol 10 (2) ◽  
pp. 31-38 ◽  
Author(s):  
Khulood AL-Saadie ◽  
◽  
Nadia Abdul Karime ◽  
Israa M Al-Mousawi ◽  
◽  
...  
Keyword(s):  
Hydrochloric Acid ◽  
Acid Medium ◽  
Corrosion Inhibition ◽  
Hydrochloric Acid Medium
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