L-Tryptophan as green corrosion inhibitor for low carbon steel in hydrochlori…

Abstract The inhibition behavior of low carbon steel in 1 M HCl by L-tryptophan was investigated with weight loss experiment and Tafel polarization curve in the used temperature range (298–328 K). All the experimental results show that L-tryptophan has excellent corrosion inhibition performance and the most effective concentration of inhibitor is 1 x 10-2 mol L-1. The Tafel polarization cu…