Table 3: Electrochemical impedance parameters of CS specimens in 1 M HCl at 30°C in the absence and presence of inhibitor A9Y5GPA.

(mM) (Ω cm2) ( F cm−2)

015.7104
0.264.293.375.55
0.491.192.682.77
0.612869.987.73
0.814960.889.46
1.018859.891.65