Effect of Diphenylthiocarbazone and Diphenylcarbazone on Acid Corrosion of Aluminium in HCl Solution - Part 1

No Thumbnail Available
Date
2009
Authors
Abiola, O.K.
Oforka, N.C.
Ifelebuegu, A.O.
Fasina, T.M.
Babatunde, A.I.
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract
The inhibitory effect of diphenylthiocarbazone (DPTC) and diphenyl carbazone (DPC) on acid corrosion of aluminium 2S alloy in 0.5 M HCI has been investigated using chemical technique. DPTC and DPC have moderate inhibitory effects on the corrosion of aluminium in HCl solution. The protection efficiency increases with increasing concentration of the compounds. DPTC exhibits higher maximum inhibition efficiency than DPC. The difference in the inhibition behaviour of the compounds is explained on the basis of the difference in election donor ability of thesulphur and oxygen atoms. The adsorption of the compounds via their adsorption centers on the aluminium surface obeyed the Langmuir adsorption isotherm. The ∆G0ads values were calculated using thermodynamic equations.
Description
Staff publications
Keywords
Research Subject Categories::NATURAL SCIENCES::Chemistry::Organic chemistry::Physical organic chemistry , Aluminium , Corrosion inhibition , Thiocarbazone , Isotherm
Citation
Abiola, O. K.,[Et...al] (2009). Effect of diphenyl thiocarbazone and diphenylcarbazone on acid corrosion of aluminium in HCl solution. Journal of Scientific Research and Development, Vol.11, 1-8pp.