Synthesis, Cyclic Voltammetric, Electrochemical, and Gravimetric Corrosion Inhibition Investigations of Schiff Base Derived from 5,5-Dimethyl-1,3-cyclohexanedione and 2-Aminophenol on Mild Steel in 1 M HCl and 0.5 M H₂SO₄

Table 5

Polarization data of MS coupons with and without DmChDp in1M HCl and 0.5M H₂SO₄.

Acid	Tafel data
	Conc				-
	(mM)	(mV)	(µA/cm2)	(mV/dec)	(mV/dec)
HCl	0	-477.3	1160	172	212
HCl	0.2	-473.5	640	138	185	44.82
	0.4	-461.4	172	83	141	85.21
	0.6	-547.2	163	104	150	85.97
	0.8	-432.2	98.9	73	135	91.47
	1	-471.5	59.5	79	130	94.87
H2SO4	0	-374.3	2528	241	242
H2SO4	0.2	-500.5	2282	253	243	9.73
	0.4	-496.3	2058	257	251	18.47
	0.6	-514.5	1957	244	219	22.59
	0.8	-538.3	1563	185	222	38.17
	1	-539.9	1244	185	205	50.79