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

Table 3

Estimated functional group on Myrmecodia Pendans extract.

Wave number (cm^−1)	Estimated functional group
3261	N-H; C=C-H; ≡C-H; -OH
2913	H-C-H
2289	C≡N
1695	C=O; N-H
1500	C-C=C; N=O; H-C-H
1457	N-H; H-C-H; C-C=C
1349	N=O
1052	C-O