Research Article

Use of a Metallic Complex Derived from Curcuma Longa as Green Corrosion Inhibitor for Carbon Steel in Sulfuric Acid

Table 1

1H NMR in DMSO d6 for the Sn-metallic complex.

H(δ)H1 : 5.7(d)H3 : 6.3(d)H4 : 7.4(d)H6 : 6.90H9 : 6.7(d)H10:6.9(d)H13 : 1.18H15 : 1.10H12 : 0.7(t)

J (Hz)JH1,H3=20JH3,H4=20JH4,H3=15JH,H10=10JH10,H9=10J1H12,H13=16.5