The corrosive behavior of mild steel in 1 M H2SO4 solutions contaminated
with 3.5 % recrystallized sodium chloride at specific concentrations of butyl
alcohol was investigated using potentiodynamic polarization and weight loss
technique. The results obtained showed butyl alcohol to be an efficient inhibitor in
the acid environment with general decrease in corrosion rate as the concentration of
the alcohol increases. The adsorption of the inhibitor on the mild steel obeys the
Langmuir adsorption isotherm. The thermodynamic parameters of adsorption
deduced reveal a mixed interaction with the steel surface and spontaneous
adsorption of butyl alcohol
