A Comparative Study of the Inhibitory Effect of Gum Exudates from Khaya senegalensis and Albizia ferruginea on the Corrosion of Mild Steel in Hydrochloric Acid Medium

Table 6

Activation energy and heat of adsorption for the inhibition of the corrosion of mild steel surface by KS and AF gums.

	(g/l)	(kJ/mol)	(kJ/mol)
KS	Blank	38.97	—
	0.1	42.50	–72.30
	0.2	48.31	–63.79
	0.3	47.26	–58.86
	0.4	46.75	–64.15
	0.5	44.63	–60.36
AF	0.1	45.44	–56.65
	0.2	51.47	–52.69
	0.3	50.57	–47.85
	0.4	56.01	–75.16
	0.5	57.16	–57.76