Corrosion inhibition of mild steel by amphoteric surfactants derived from aspartic acid

Abstract

Abstract The inhibition of mild steel corrosion/in 0.5 M HCl solution by amphoteric surfactants (which contain both an anionic and a cationic moiety in the same molecule) of general formula: magnified image (R alkyl group of C 10, 11, 12, 13, 15 and 17 ) is shown to confirm Langmuir's adsorption isotherms. At a given concentration of surfactants, the inhibiting action increases with the increase of carbon chain length. The influence of both inductive and steric hindrance effects of methylene groups in –R on the inhibition efficiency has also been mentioned.