Inhibition of Corrosion of Carbon Steel in 3.5% NaCl Solution by Myrmecodia Pendans Extract

Table 5

Values of and when adding each concentration in Myrmecodia Pendans extracts.

Concentration ()	NaCl
	Efficiency inhibition (%)	Surface coverage (θ)		Langmuir	(kJ/mol)
100	74.28	0.7428	134.63	0.597	14.217
200	79.85	0.7985	250.47
300	90.39	0.9039	331.90
400	91.41	0.9141	437.59
500	87.75	0.8775	569.80