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

Table 3

Kinetic and activation parameters in the absence and presence of inhibitors in 0.5 M HCl.

Inhibitor	(mM)	(kJ mol^−1)	(mg cm^−2 h^−1)	(kJ mol^−1)	(kJ mol^−1)	(J mol^−1 K^−1)
Blank	—	32.1	186465	30.5	29.5	−152.9
2-MTPH	0.22	37.2	473070	34.6	34.6	−145.1
	0.44	40.8	1416925	38.2	38.2	−136.0
	0.66	55.1	201439571	52.5	52.5	−94.8
	0.88	79.9	1.471 × 10^12	77.3	77.3	−20.8
3-MTPH	0.22	37.4	762989	34.8	34.8	−141.1
	0.44	42.1	3311792	39.4	39.5	−128.9
	0.66	49.8	45127393	47.2	47.2	−107.2
	0.88	55.5	2.93 × 10^8	52.8	52.8	−91.7
4-MTPH	0.22	37.3	711407	34.7	34.7	−141.7
	0.44	40.1	1426879	37.4	37.4	−135.9
	0.66	48.9	31737198	46.3	46.3	−110.1
	0.88	55.8	3.07 × 10^8	53.1	53.1	−91.3