Investigation of schiff bases as corrosion inhibitors for mild steel in im sulfuric acid media / Indra Totoh
Three Schiff base compounds, {[(lE)-(4-chlorophenyl)methylene]amino}phenol (Cben-ap), 2-[2-hydroxybenzylidene)amino]phenol (Sal-ap) and 2-{(E)-[(4- anilinophenyl)-imino]methyl}phenol (Sal-NPD) have been synthesized by the condensation of appropriate aldehydes and amines. Cben-ap is a light green cry...
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| Format: | Student Project |
| Language: | English |
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Faculty of Applied Sciences
2009
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| Online Access: | https://ir.uitm.edu.my/id/eprint/22943/1/PPb_INDRA%20TOTOH%20AS%2009_5.pdf |
| _version_ | 1796901647640690688 |
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| author | Totoh, Indra |
| author_facet | Totoh, Indra |
| author_sort | Totoh, Indra |
| collection | UITM |
| description | Three Schiff base compounds, {[(lE)-(4-chlorophenyl)methylene]amino}phenol (Cben-ap), 2-[2-hydroxybenzylidene)amino]phenol (Sal-ap) and 2-{(E)-[(4- anilinophenyl)-imino]methyl}phenol (Sal-NPD) have been synthesized by the condensation of appropriate aldehydes and amines. Cben-ap is a light green crystal with 55 % yield, Sal-ap is an orange crystal with 78 % yield, Sal-NPD is a dark green crystal with 72 % yield. The structure of the Schiff bases are investigated using elemental analysis, IR spectroscopy, NMR spectroscopy and melting point determination. Results obtained from elemental analysis are closely matched the theoretical/literature values. These indicate that the intended products of Cben-ap, Sal-ap and Sal-NPD have been successfully obtained. The v(C=N) peaks are assigned at 1625, 1631 and 1619 cm"1, respectively. The inhibiting action of these Schiff bases toward the corrosion of mild steel in 1 M H2SO4 solution has been studied using the weight loss method, with inhibitor concentrations of 1 x 10"5 to 1 x 10"2 M for a 7 day exposure. It is found that the inhibition efficiency increases with increasing inhibitor concentration, with Cben-ap exhibited the highest corrosion inhibition property of 92.29% at 1 x 10"3 M, followed by Sal-ap which exhibited the second highest corrosion inhibition of 90.39% at 1 x 10"2 M and Sal-NPD around 82.00 % at 1 x 10"4 M. |
| first_indexed | 2024-03-06T01:53:13Z |
| format | Student Project |
| id | uitm.eprints-2943 |
| institution | Universiti Teknologi MARA |
| language | English |
| last_indexed | 2024-03-06T01:53:13Z |
| publishDate | 2009 |
| publisher | Faculty of Applied Sciences |
| record_format | dspace |
| spelling | uitm.eprints-29432019-02-25T04:47:54Z https://ir.uitm.edu.my/id/eprint/22943/ Investigation of schiff bases as corrosion inhibitors for mild steel in im sulfuric acid media / Indra Totoh Totoh, Indra Schiff bases Three Schiff base compounds, {[(lE)-(4-chlorophenyl)methylene]amino}phenol (Cben-ap), 2-[2-hydroxybenzylidene)amino]phenol (Sal-ap) and 2-{(E)-[(4- anilinophenyl)-imino]methyl}phenol (Sal-NPD) have been synthesized by the condensation of appropriate aldehydes and amines. Cben-ap is a light green crystal with 55 % yield, Sal-ap is an orange crystal with 78 % yield, Sal-NPD is a dark green crystal with 72 % yield. The structure of the Schiff bases are investigated using elemental analysis, IR spectroscopy, NMR spectroscopy and melting point determination. Results obtained from elemental analysis are closely matched the theoretical/literature values. These indicate that the intended products of Cben-ap, Sal-ap and Sal-NPD have been successfully obtained. The v(C=N) peaks are assigned at 1625, 1631 and 1619 cm"1, respectively. The inhibiting action of these Schiff bases toward the corrosion of mild steel in 1 M H2SO4 solution has been studied using the weight loss method, with inhibitor concentrations of 1 x 10"5 to 1 x 10"2 M for a 7 day exposure. It is found that the inhibition efficiency increases with increasing inhibitor concentration, with Cben-ap exhibited the highest corrosion inhibition property of 92.29% at 1 x 10"3 M, followed by Sal-ap which exhibited the second highest corrosion inhibition of 90.39% at 1 x 10"2 M and Sal-NPD around 82.00 % at 1 x 10"4 M. Faculty of Applied Sciences 2009 Student Project NonPeerReviewed text en https://ir.uitm.edu.my/id/eprint/22943/1/PPb_INDRA%20TOTOH%20AS%2009_5.pdf Investigation of schiff bases as corrosion inhibitors for mild steel in im sulfuric acid media / Indra Totoh. (2009) [Student Project] <http://terminalib.uitm.edu.my/22943.pdf> (Unpublished) |
| spellingShingle | Schiff bases Totoh, Indra Investigation of schiff bases as corrosion inhibitors for mild steel in im sulfuric acid media / Indra Totoh |
| title | Investigation of schiff bases as corrosion inhibitors for mild steel in im sulfuric acid media / Indra Totoh |
| title_full | Investigation of schiff bases as corrosion inhibitors for mild steel in im sulfuric acid media / Indra Totoh |
| title_fullStr | Investigation of schiff bases as corrosion inhibitors for mild steel in im sulfuric acid media / Indra Totoh |
| title_full_unstemmed | Investigation of schiff bases as corrosion inhibitors for mild steel in im sulfuric acid media / Indra Totoh |
| title_short | Investigation of schiff bases as corrosion inhibitors for mild steel in im sulfuric acid media / Indra Totoh |
| title_sort | investigation of schiff bases as corrosion inhibitors for mild steel in im sulfuric acid media indra totoh |
| topic | Schiff bases |
| url | https://ir.uitm.edu.my/id/eprint/22943/1/PPb_INDRA%20TOTOH%20AS%2009_5.pdf |
| work_keys_str_mv | AT totohindra investigationofschiffbasesascorrosioninhibitorsformildsteelinimsulfuricacidmediaindratotoh |