Premium
Cyanine dyes as corrosion inhibitors. I. Electrochemical corrosion behaviour of copper metal treated with hydroxystyryl cyanine dye
Author(s) -
Makhlouf M. Th.,
Khalil Zarif H.
Publication year - 1987
Publication title -
journal of chemical technology and biotechnology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.64
H-Index - 117
eISSN - 1097-4660
pISSN - 0268-2575
DOI - 10.1002/jctb.280380205
Subject(s) - cyanine , copper , corrosion , electrochemistry , cathodic protection , metal , iodide , polarization (electrochemistry) , inorganic chemistry , nitric acid , chemistry , pyridinium , materials science , electrode , metallurgy , organic chemistry , physics , quantum mechanics , fluorescence
The effect of 2‐( o ‐hydroxystyryl) pyridinium‐1‐ethyl iodide cyanine dye on the corrosion behaviour of copper metal in nitric acid solution has been studied. Weight loss measurements, galvanostatic polarization curves, open‐circuit potential variation of copper electrode with time and the cathodic protective current values indicate that styryl cyanine dye gives an anticorrosive character. The inhibition effect is more pronounced in the case of copper metal coated by dye thin film than that obtained by its addition to the corrosion medium.