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Journal of Applied Sciences and Environmental Management
World Bank assisted National Agricultural Research Project (NARP) - University of Port Harcourt
ISSN: 1119-8362
Vol. 19, No. 1, 2015, pp. 135-143
Bioline Code: ja15018
Full paper language: English
Document type: Research Article
Document available free of charge

Journal of Applied Sciences and Environmental Management, Vol. 19, No. 1, 2015, pp. 135-143

 en Comparism of Corrosion Inhibitory Effect of 4-[(3,4-Dimethoxybenzylidene)Amino]-1,5- Dimethyl-2-Phenyl-1H-Pyrazol-3(2H)-One in H2SO4 and HCl Environment.


The inhibition ability of Schiff base, 4-[(3,4-Dimethoxybenzylidene)amino]- 1,5-dimethyl-2-phenyl-1H-pyrazol-3(2H)-one on the corrosion of mild steel in 2M H2SO4 and HCl was studied by weight loss method.The inhibition efficiency of the Schiff base on mild steel metal was investigated at four temperatures and concentrations. The highest concentration 2x10-2M of the Schiff base gave inhibition efficiencies of 91%, 89%, 88%,and 60% at temperatures; 30°C, 40°C, 60°C,and 80°C respectively in H2SO4 medium, the same concentrations under the same conditions gave inhibition efficiencies of 94%, 95%, 97%,and 98% at temperatures; 30°C, 40°C, 60°C, and 80°C respectively in HCl medium, suggesting that the inhibitor performs better in HCl medium than in H2SO4 medium at high temperatures.

corrosive environments; temperature; corrosion; Schiff base; mild steel

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