Comparison of D.C. and A.C. techniques for the evaluation of inhibitor efficiency in acid corrosion |
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| Authors: | L Mészáros B Lengyel A Frignani C Monticelli G Trabanelli |
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| Affiliation: | Hungarian Academy of Sciences, Research Laboratory for Inorganic Chemistry, 1502 Budapest, P.O.B. 132 Hungary;Centro di Studi sulla Corrosione Aldo Daccò Istituto Chimico, Università di Ferrara, 44100 FerraraItaly |
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| Abstract: | Five different techniques (analytical determination of dissolved iron, Tafel line extrapolation, linear polarization method, impedance and Faradaic distortion measurements) were used for the evaluation of the inhibiting efficiency of N-decyl-3-hydroxypyridine bromide in 1 M hydrochloric acid solutions. The results obtained with the different methods were found to agree satisfactorily. High inhibiting efficiency value was obtained at 1× 10?4Mdm?3 concentration. |
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