Investigation of schiff bases as corrosion inhibitors for mild steel in im sulfuric acid media / Indra Totoh

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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Main Author: Totoh, Indra
Format: Student Project
Language:English
Published: Faculty of Applied Sciences 2009
Subjects:
Schiff bases
Online Access:http://ir.uitm.edu.my/id/eprint/22943/
http://ir.uitm.edu.my/id/eprint/22943/1/PPb_INDRA%20TOTOH%20AS%2009_5.pdf
id uitm-22943
recordtype eprints
spelling uitm-229432019-02-25T04:47:54Z http://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 http://ir.uitm.edu.my/id/eprint/22943/1/PPb_INDRA%20TOTOH%20AS%2009_5.pdf Totoh, Indra (2009) Investigation of schiff bases as corrosion inhibitors for mild steel in im sulfuric acid media / Indra Totoh. [Student Project] (Unpublished)
repository_type Digital Repository
institution_category Local University
institution Universiti Teknologi MARA
building UiTM Institutional Repository
collection Online Access
language English
topic Schiff bases
spellingShingle Schiff bases
Totoh, Indra
Investigation of schiff bases as corrosion inhibitors for mild steel in im sulfuric acid media / Indra Totoh
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.
format Student Project
author Totoh, Indra
author_facet Totoh, Indra
author_sort Totoh, Indra
title 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_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_sort investigation of schiff bases as corrosion inhibitors for mild steel in im sulfuric acid media / indra totoh
publisher Faculty of Applied Sciences
publishDate 2009
url http://ir.uitm.edu.my/id/eprint/22943/
http://ir.uitm.edu.my/id/eprint/22943/1/PPb_INDRA%20TOTOH%20AS%2009_5.pdf
first_indexed 2023-09-18T23:09:45Z
last_indexed 2023-09-18T23:09:45Z
_version_ 1777418722649047040

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