Investigation of the inhibition effect of trithiocyanuric acid on corrosion of copper in 3.0Â wt.% NaCl

► Trithiocyanuric acid (TTCA) has good inhibition effect for copper in 3.0% NaCl. ► The compound acts as a mixed-type inhibitor. ► The SEM and EDX analyses support the weight loss, EIS, and polarization data. ► Molecular mechanics method simulates the adsorption model of TTCA on Cu surface.