Corrosion Inhibition of Steel API 5L X52

Carbon steel API 5L X52 with its composition was reported as: 0.16% Carbon, 0.45% Silicon, 1.65% Manganese, 0.02% Phosphorus, 0.01% Sulphur, 0.07% Vanadium, 0.05% Niobium, 0.04% Titanium and Fe as balance.

Chemical product used Acryloyl chloride, Ethanolamine, Diethanolamine all BDH grade and all Purchased from Al-Gomhoria Company, Egypt. The synthesized acrylamide derivatives (HCA and BHCA) with their molecular formulas and molecular weights are shown in Fig. 1

Hydrochloric Acid was purchased from Al-Gomhoria Company, Egypt. In every experiment, the corrosive medium was a solution of 1 M HCl. A 37% HCl solution of Analar grade was diluted to create the corrosive solutions.