The Effect of Concentration of Lawsonia inermis as a Corrosion Inhibitor for Aluminum Alloy in Seawater

Table 3

EIS parameters of aluminum in the absence and presence of Lawsonia inermis.

Concentration (ppm)	CPE ()	(Ω)	CPE ()	(%)
0		1102.3	0.998	—
200		5293.8	0.998	79
400		9656.7	0.998	89
600		14384.0	0.996	92
800		9694.2	0.997	89
1000		5761.2	0.998	81