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Effect Of Different Phenols On Aluminum Corrosion In Alkaline Medium

Howaida M.El-Kashlan, Dalia M.S.A.Salem

Inhibition of aluminum corrosion in NaOH solution by phenol, o-cresol, p-cresol, p-aminophenol and p-chlorophenol has been studied using weightloss and hydrogen evolution methods. It is found that the inhibition efficiency depends on the type of phenols as well as its concentration. The order of increasing inhibition is as follows p-aminophenol>pchlorophenol> O-cresol>P-cresol>phenol thermodynamic parameters were calculated.