EIS for SS304 after immersion in 1.0 M HCl in the presence of altered concentrations of SCP1 and SCP2.

Comp.	Conc., ×106 M	R ct, Ω cm2	C dl, ×104, μF cm−2	n	Y 0, (μΩ−1 sn cm−2) × 10−6	Θ	η (%)	Goodness of fit χ2
Blank	0.0	6.7 ± 0.1456	147 ± 0.2775	0.915	164	—	—	8.55 × 10−3
SCP1	7	40.8 ± 0.2516	122 ± 0.2309	0.939	152	0.836	83.6	6.57 × 10−3
	10	48.8 ± 0.1527	104 ± 0.1201	0.948	145	0.863	86.3	6.54 × 10−3
	13	63.2 ± 0.2728	78 ± 0.2333	0.958	115	0.894	89.4	5.74 × 10−3
	16	86.9 ± 0.2333	67 ± 0.1855	0.959	105	0.923	92.3	4.89 × 10−3
SCP2	7	37.3 ± 0.1808	131 ± 0.2496	0.913	160	0.820	82.0	4.32 × 10−3
	10	43.1 ± 0.1201	118 ± 0.1732	0.914	151	0.845	84.5	5.77 × 10−3
	13	47.9 ± 0.2309	86 ± 0.1527	0.921	126	0.860	86.0	7.12 × 10−3
	16	64.7 ± 0.1763	71 ± 0.2185	0.936	113	0.896	89.6	6.66 × 10−3