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Efficacy of some newly synthesised mannich bases as corrosion inhibitor on aluminium in HCl solution

Author:Pooja Sharma, R.K. Upadhyay and Alok Chaturvedi

Abstract:
Weight loss, thermometric and potentiometric methods have been used to study the corrosion inhibition of aluminum in HCl solution by four newly synthesised Mannich bases viz 3-oxo, 3-phenyl, N,N-dimethyl propanamine hydrochloride (MB1), 3,5-dioxo,5-phenyl N,N-dimethyl pentanamine hydrochloride(MB2), 2,2-dimethyl,3-oxo N,N dimethyl butanamine hydrochloride (MB3) and 3-oxo N,N-dimethyl butanamine hydrochloride((MB4. Results of inhibition efficacies obtained from said methods are in good agreement with each other. Efficacy of inhibitor increases with increasing concentration of inhibitor as well as that of HCl solution.