Uncaria Gambir As Natural Corrosion Inhibitor For Mild Steel In Acidic Solution
Uncaria gambir, a native Southeast Asia herbal plant has been characterized and studied as a mild steel corrosion inhibitor in acidic media. It was revealed that ethyl acetate gambir extract gave the highest condensed tannin, phenol and flavonoid content compared with other solvent extracts. Quantif...
| المؤلف الرئيسي: | |
|---|---|
| التنسيق: | أطروحة |
| اللغة: | الإنجليزية |
| منشور في: |
2010
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| الموضوعات: | |
| الوصول للمادة أونلاين: | http://eprints.usm.my/42083/ |
| _version_ | 1846216339239206912 |
|---|---|
| author | Hussin, Mohd. Hazwan |
| author_facet | Hussin, Mohd. Hazwan |
| author_sort | Hussin, Mohd. Hazwan |
| description | Uncaria gambir, a native Southeast Asia herbal plant has been characterized and studied as a mild steel corrosion inhibitor in acidic media. It was revealed that ethyl acetate gambir extract gave the highest condensed tannin, phenol and flavonoid content compared with other solvent extracts. Quantification studies by means of HPLC have shown that more than 80 % (wt) of gambir extract consists mainly of catechin. The effect of both ethyl acetate gambir extract and (+)-catechin hydrate as corrosion inhibitors for mild steel in 1 M HCl solution was done using various techniques such as weight loss, potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) measurements. |
| first_indexed | 2025-10-17T08:18:25Z |
| format | Thesis |
| id | usm-42083 |
| institution | Universiti Sains Malaysia |
| language | English |
| last_indexed | 2025-10-17T08:18:25Z |
| publishDate | 2010 |
| record_format | eprints |
| spelling | usm-420832019-04-12T05:26:58Z http://eprints.usm.my/42083/ Uncaria Gambir As Natural Corrosion Inhibitor For Mild Steel In Acidic Solution Hussin, Mohd. Hazwan QD1-999 Chemistry Uncaria gambir, a native Southeast Asia herbal plant has been characterized and studied as a mild steel corrosion inhibitor in acidic media. It was revealed that ethyl acetate gambir extract gave the highest condensed tannin, phenol and flavonoid content compared with other solvent extracts. Quantification studies by means of HPLC have shown that more than 80 % (wt) of gambir extract consists mainly of catechin. The effect of both ethyl acetate gambir extract and (+)-catechin hydrate as corrosion inhibitors for mild steel in 1 M HCl solution was done using various techniques such as weight loss, potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) measurements. 2010 Thesis NonPeerReviewed application/pdf en http://eprints.usm.my/42083/1/MOHD_HAZWAN_HUSSIN.pdf Hussin, Mohd. Hazwan (2010) Uncaria Gambir As Natural Corrosion Inhibitor For Mild Steel In Acidic Solution. Masters thesis, Universiti Sains Malaysia. |
| spellingShingle | QD1-999 Chemistry Hussin, Mohd. Hazwan Uncaria Gambir As Natural Corrosion Inhibitor For Mild Steel In Acidic Solution |
| title | Uncaria Gambir As Natural Corrosion Inhibitor For Mild Steel In Acidic Solution |
| title_full | Uncaria Gambir As Natural Corrosion Inhibitor For Mild Steel In Acidic Solution |
| title_fullStr | Uncaria Gambir As Natural Corrosion Inhibitor For Mild Steel In Acidic Solution |
| title_full_unstemmed | Uncaria Gambir As Natural Corrosion Inhibitor For Mild Steel In Acidic Solution |
| title_short | Uncaria Gambir As Natural Corrosion Inhibitor For Mild Steel In Acidic Solution |
| title_sort | uncaria gambir as natural corrosion inhibitor for mild steel in acidic solution |
| topic | QD1-999 Chemistry |
| url | http://eprints.usm.my/42083/ |
| work_keys_str_mv | AT hussinmohdhazwan uncariagambirasnaturalcorrosioninhibitorformildsteelinacidicsolution |