Protection of low-carbon steel in phosphoric acid solutions by mixtures of a substituted triazole with sulfur-containing compounds

Abstract

Based on IFKhAN-92 inhibitor, which is a substituted triazole, and sulfur-containing additives, efficient mixtures have been developed that protect low-carbon steel in phosphoric acid solutions in a broad range of acid concentrations (2.0–8.0 M) and temperatures (0–95C).