Opuntia ficus-indica Extract as Green Corrosion Inhibitor for Carbon Steel in 1 M HCl Solution

Table 3

Thermodynamical parameters obtained from the Langmuir type of adsorption isotherm.

Temperature; (°C)	Slope		(KJ·mol^−1)	KJ·mol^−1
25	1.380	0.9986	55.50
40	0.014	0.9994	71.43
60	1.004	0.9997	250