Variation of %IE with altered doses of the investigated compounds at 25 °C from WL measurements at 120 min dipping in 1.0 M HCl.

Comp.	Conc. (M)	C.R. (mg cm−2 min−1)	%IE
Blank	—	0.028 ± 0.0021	—
Inhibitor (I)	1 × 10−6	0.015 ± 0.0015	60.8
	5 × 10−6	0.012 ± 0.0023	65.5
	9 × 10−6	0.010 ± 0.0009	70.9
	13 × 10−6	0.008 ± 0.0019	70.9
	17 × 10−6	0.007 ± 0.0009	81.0
	21 × 10−6	0.006 ± 0.0023	86.6
Inhibitor (II)	1 × 10−6	0.012 ± 0.0026	69.1
	5 × 10−6	0.009 ± 0.0021	73.9
	9 × 10−6	0.007 ± 0.0017	79.2
	13 × 10−6	0.006 ± 0.0021	82.5
	17 × 10−6	0.005 ± 0.0017	87.6
	21 × 10−6	0.003 ± 0.0020	92.8