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Synthesis, characterisation and corrosion inhibition screening of Co(Ii) dithiocarbamate complexes in HCl and H2SO4 / Mimi Wahidah Mohd Radzi ... [et al.]

Most industries use acids during cleaning processes where they may cause severe corrosion attacks on metal surfaces. This study utilised a corrosion inhibitor to reduce the corrosion rate. Cobalt(II) N-methylcyclohexylamine dithiocarbamate, Co[MeCycHexdtc]2 and cobalt(II) N-ethylcyclohexylamine dith...

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Main Authors:	Mohd Radzi, Mimi Wahidah, Alias, Nur Alia Atiqah, Esa, Fasihah, Dzulkifli, Nur Nadia
Format:	Article
Language:	English
Published:	Universiti Teknologi MARA, Negeri Sembilan 2021
Subjects:	General. Including alchemy Organic chemistry Dithiocarbamates. Thio compounds Extraction (Chemistry)
Online Access:	https://ir.uitm.edu.my/id/eprint/53797/1/53797.pdf https://ir.uitm.edu.my/id/eprint/53797/
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id	my.uitm.ir.53797
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spelling	my.uitm.ir.537972021-12-01T07:06:53Z https://ir.uitm.edu.my/id/eprint/53797/ Synthesis, characterisation and corrosion inhibition screening of Co(Ii) dithiocarbamate complexes in HCl and H2SO4 / Mimi Wahidah Mohd Radzi ... [et al.] Mohd Radzi, Mimi Wahidah Alias, Nur Alia Atiqah Esa, Fasihah Dzulkifli, Nur Nadia General. Including alchemy Organic chemistry Dithiocarbamates. Thio compounds Extraction (Chemistry) Most industries use acids during cleaning processes where they may cause severe corrosion attacks on metal surfaces. This study utilised a corrosion inhibitor to reduce the corrosion rate. Cobalt(II) N-methylcyclohexylamine dithiocarbamate, Co[MeCycHexdtc]2 and cobalt(II) N-ethylcyclohexylamine dithiocarbamate, Co[EtCycHexdtc]2 were synthesised by using the in-situ method with a molar ratio of 2:2:1 (carbon disulphide:amine:metal salt) in cold ethanolic solution and characterised by using the Fourier Transform Infrared-Attenuated Total Reflectance (FTIR-ATR) and Ultraviolet-Visible (UV-Vis) spectroscopies. In the FTIR-ATR analysis, the presence of dithiocarbamate moiety was proven by the data shown with the presence of a new specific stretching bands, thioureide band, υ(CN) which is found in the range of 1478–1481 cm-1 and υ(CS) in 1010-1012 cm-1 of the spectra in both Co(II) complexes. For UV-Vis analysis, the Co(II) complexes showed two transitions, π→π* and n→π* transitions, which indicated that the coordination between metal ions and dithiocarbamates ligands has successfully formed. The presence of peaks above 400 nm confirmed the d-d transition of Co(II) complexes. Furthermore, mild steel corrosion inhibition screening was studied using two corrosive media (1 M HCl and 1 M H2SO4) with and without varied inhibitor concentrations. As the inhibitor concentration increased, the efficiency of the corrosion inhibitor also increased at a constant temperature. Universiti Teknologi MARA, Negeri Sembilan 2021 Article PeerReviewed text en https://ir.uitm.edu.my/id/eprint/53797/1/53797.pdf ID53797 Mohd Radzi, Mimi Wahidah and Alias, Nur Alia Atiqah and Esa, Fasihah and Dzulkifli, Nur Nadia (2021) Synthesis, characterisation and corrosion inhibition screening of Co(Ii) dithiocarbamate complexes in HCl and H2SO4 / Mimi Wahidah Mohd Radzi ... [et al.]. Journal of Academia, 9. pp. 1-10. ISSN 2289-6368
institution	Universiti Teknologi Mara
building	Tun Abdul Razak Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Teknologi Mara
content_source	UiTM Institutional Repository
url_provider	http://ir.uitm.edu.my/
language	English
topic	General. Including alchemy Organic chemistry Dithiocarbamates. Thio compounds Extraction (Chemistry)
spellingShingle	General. Including alchemy Organic chemistry Dithiocarbamates. Thio compounds Extraction (Chemistry) Mohd Radzi, Mimi Wahidah Alias, Nur Alia Atiqah Esa, Fasihah Dzulkifli, Nur Nadia Synthesis, characterisation and corrosion inhibition screening of Co(Ii) dithiocarbamate complexes in HCl and H2SO4 / Mimi Wahidah Mohd Radzi ... [et al.]
description	Most industries use acids during cleaning processes where they may cause severe corrosion attacks on metal surfaces. This study utilised a corrosion inhibitor to reduce the corrosion rate. Cobalt(II) N-methylcyclohexylamine dithiocarbamate, Co[MeCycHexdtc]2 and cobalt(II) N-ethylcyclohexylamine dithiocarbamate, Co[EtCycHexdtc]2 were synthesised by using the in-situ method with a molar ratio of 2:2:1 (carbon disulphide:amine:metal salt) in cold ethanolic solution and characterised by using the Fourier Transform Infrared-Attenuated Total Reflectance (FTIR-ATR) and Ultraviolet-Visible (UV-Vis) spectroscopies. In the FTIR-ATR analysis, the presence of dithiocarbamate moiety was proven by the data shown with the presence of a new specific stretching bands, thioureide band, υ(CN) which is found in the range of 1478–1481 cm-1 and υ(CS) in 1010-1012 cm-1 of the spectra in both Co(II) complexes. For UV-Vis analysis, the Co(II) complexes showed two transitions, π→π* and n→π* transitions, which indicated that the coordination between metal ions and dithiocarbamates ligands has successfully formed. The presence of peaks above 400 nm confirmed the d-d transition of Co(II) complexes. Furthermore, mild steel corrosion inhibition screening was studied using two corrosive media (1 M HCl and 1 M H2SO4) with and without varied inhibitor concentrations. As the inhibitor concentration increased, the efficiency of the corrosion inhibitor also increased at a constant temperature.
format	Article
author	Mohd Radzi, Mimi Wahidah Alias, Nur Alia Atiqah Esa, Fasihah Dzulkifli, Nur Nadia
author_facet	Mohd Radzi, Mimi Wahidah Alias, Nur Alia Atiqah Esa, Fasihah Dzulkifli, Nur Nadia
author_sort	Mohd Radzi, Mimi Wahidah
title	Synthesis, characterisation and corrosion inhibition screening of Co(Ii) dithiocarbamate complexes in HCl and H2SO4 / Mimi Wahidah Mohd Radzi ... [et al.]
title_short	Synthesis, characterisation and corrosion inhibition screening of Co(Ii) dithiocarbamate complexes in HCl and H2SO4 / Mimi Wahidah Mohd Radzi ... [et al.]
title_full	Synthesis, characterisation and corrosion inhibition screening of Co(Ii) dithiocarbamate complexes in HCl and H2SO4 / Mimi Wahidah Mohd Radzi ... [et al.]
title_fullStr	Synthesis, characterisation and corrosion inhibition screening of Co(Ii) dithiocarbamate complexes in HCl and H2SO4 / Mimi Wahidah Mohd Radzi ... [et al.]
title_full_unstemmed	Synthesis, characterisation and corrosion inhibition screening of Co(Ii) dithiocarbamate complexes in HCl and H2SO4 / Mimi Wahidah Mohd Radzi ... [et al.]
title_sort	synthesis, characterisation and corrosion inhibition screening of co(ii) dithiocarbamate complexes in hcl and h2so4 / mimi wahidah mohd radzi ... [et al.]
publisher	Universiti Teknologi MARA, Negeri Sembilan
publishDate	2021
url	https://ir.uitm.edu.my/id/eprint/53797/1/53797.pdf https://ir.uitm.edu.my/id/eprint/53797/
_version_	1718929588621410304
score	13.211869

Synthesis, characterisation and corrosion inhibition screening of Co(Ii) dithiocarbamate complexes in HCl and H2SO4 / Mimi Wahidah Mohd Radzi ... [et al.]

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