Anticorrosion Behaviour of Rhizophora mangle L. Bark-Extract on Concrete Steel-Rebar in Saline/Marine Simulating-Environment

Table 3

Modelled Langmuir adsorption isotherm fitting parameters.

Isotherm parameter	Experimental model	Predicted model
Kads	177.4666	255.0057
R, correlation coefficient, (%)	99.97	99.98
RL, separation factor	1.0221 × 10^–3	7.1166 × 10^–4
ΔGads Gibbs free energy (kJ/mol)	–27.6209	–23.8387