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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| Language: | en |
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Universiti Teknologi MARA, Negeri Sembilan
2021
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| Online Access: | https://ir.uitm.edu.my/id/eprint/53797/1/53797.pdf https://ir.uitm.edu.my/id/eprint/53797/ https://journal.uitm.edu.my/ojs/index.php/JOA |
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| 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 |
| building | Tun Abdul Razak Library |
| collection | Institutional Repository |
| content_provider | Universiti Teknologi Mara |
| content_source | UiTM Institutional Repository |
| continent | Asia |
| country | Malaysia |
| 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 |
| id | my.uitm.ir-53797 |
| institution | Universiti Teknologi Mara |
| language | en |
| publishDate | 2021 |
| publisher | Universiti Teknologi MARA, Negeri Sembilan |
| record_format | eprints |
| spelling | my.uitm.ir-537972025-07-07T05:37:50Z 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.] joa 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 2021-10 Article PeerReviewed text en https://ir.uitm.edu.my/id/eprint/53797/1/53797.pdf Synthesis, characterisation and corrosion inhibition screening of Co(Ii) dithiocarbamate complexes in HCl and H2SO4 / Mimi Wahidah Mohd Radzi ... [et al.]. (2021) Journal of Academia <https://ir.uitm.edu.my/view/publication/Journal_of_Academia.html>, 9 (2): 1. pp. 1-10. ISSN 2289-6368 https://journal.uitm.edu.my/ojs/index.php/JOA |
| 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.] |
| title | 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_short | 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.] |
| topic | General. Including alchemy Organic chemistry Dithiocarbamates. Thio compounds Extraction (Chemistry) |
| url | https://ir.uitm.edu.my/id/eprint/53797/1/53797.pdf https://ir.uitm.edu.my/id/eprint/53797/ https://journal.uitm.edu.my/ojs/index.php/JOA |
| url_provider | http://ir.uitm.edu.my/ |