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 : 6.90 | H9 : 6.7(d) | H10:6.9(d) | H13 : 1.18 | H15 : 1.10 | H12 : 0.7(t) |
| J (Hz) | JH1,H3=20 | JH3,H4=20 | JH4,H3=15 | | JH,H10=10 | JH10,H9=10 | | | J1H12,H13=16.5 |
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