Study of New Thiazole Based Pyridine Derivatives as Potential Corrosion Inhibitors for Mild Steel: Theoretical and Experimental Approach

Table 6

Impedance parameters for the corrosion of MS in 0.5 M HCl in the absence and presence of different concentrations of inhibitors at 303 K.

Inhibitor	Concentration (mM)	(Ohm cm^2)	(F cm^−2)	(Ohm cm^2)	% IE
	Blank	124	59.7	2.84	—
2-MTPH	0.22	393	33.1	8.10	68.5
	0.44	486	25.9	3.40	74.6
	0.66	998	25.6	4.66	87.6
	0.88	1360	14.9	1.32	91.0
3-MTPH	0.22	262	33.7	3.72	52.8
	0.44	400	21.9	3.91	69.1
	0.66	581	17.5	9.58	78.7
	0.88	815	14.0	4.68	84.8
4-MTPH	0.22	268	39.9	3.74	53.9
	0.44	435	14.1	9.89	71.6
	0.66	610	13.5	5.07	79.7
	0.88	886	10.3	4.54	86.1