<b>Inhibition of the corrosion of mild steel in hydrochloric acid by isatin and isatin glycine</b>
The inhibition of corrosion of mild steel in hydrochloric acid by isatin glycine (ING) and isatin (IN) at 30-60 <sup>o</sup>C and concentrations of 0.0001 M to 0.0005 M was studied via weight loss method. At the highest inhibitor concentration studied ING exhibited inhibition efficiency...
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| Format: | Article |
| Language: | English |
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Chemical Society of Ethiopia
2006-12-01
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| Series: | Bulletin of the Chemical Society of Ethiopia |
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| Online Access: | http://www.ajol.info/index.php/bcse/article/view/21168 |
| _version_ | 1811300036480335872 |
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| author | B.I. Ita |
| author_facet | B.I. Ita |
| author_sort | B.I. Ita |
| collection | DOAJ |
| description | The inhibition of corrosion of mild steel in hydrochloric acid by isatin glycine (ING) and isatin (IN) at 30-60 <sup>o</sup>C and concentrations of 0.0001 M to 0.0005 M was studied via weight loss method. At the highest inhibitor concentration studied ING exhibited inhibition efficiency of 87% while IN exhibited 84% at 60 <sup>o</sup>C. A chemical adsorption mechanism was proposed on the basis of the temperature effect and obtained average activation energy values of 143.9 kJ/mol for ING and 118.5 kJ/mol for IN. The two inhibitors were confirmed to obey the Langmuir adsorption isotherm equation at the concentrations studied. Also a first-order type of mechanism was proposed from the kinetic treatment of the result. The difference in the inhibitory properties of the inhibitors was explained in terms of the difference in their molecular structures and solubility rather than difference in molecular weights alone. |
| first_indexed | 2024-04-13T06:44:26Z |
| format | Article |
| id | doaj.art-0278e393ce7e4294936d44765aa890cd |
| institution | Directory Open Access Journal |
| issn | 1011-3924 1726-801X |
| language | English |
| last_indexed | 2024-04-13T06:44:26Z |
| publishDate | 2006-12-01 |
| publisher | Chemical Society of Ethiopia |
| record_format | Article |
| series | Bulletin of the Chemical Society of Ethiopia |
| spelling | doaj.art-0278e393ce7e4294936d44765aa890cd2022-12-22T02:57:37ZengChemical Society of EthiopiaBulletin of the Chemical Society of Ethiopia1011-39241726-801X2006-12-01202253258<b>Inhibition of the corrosion of mild steel in hydrochloric acid by isatin and isatin glycine</b>B.I. ItaThe inhibition of corrosion of mild steel in hydrochloric acid by isatin glycine (ING) and isatin (IN) at 30-60 <sup>o</sup>C and concentrations of 0.0001 M to 0.0005 M was studied via weight loss method. At the highest inhibitor concentration studied ING exhibited inhibition efficiency of 87% while IN exhibited 84% at 60 <sup>o</sup>C. A chemical adsorption mechanism was proposed on the basis of the temperature effect and obtained average activation energy values of 143.9 kJ/mol for ING and 118.5 kJ/mol for IN. The two inhibitors were confirmed to obey the Langmuir adsorption isotherm equation at the concentrations studied. Also a first-order type of mechanism was proposed from the kinetic treatment of the result. The difference in the inhibitory properties of the inhibitors was explained in terms of the difference in their molecular structures and solubility rather than difference in molecular weights alone.http://www.ajol.info/index.php/bcse/article/view/21168CorrosionInhibition of corrosionMild steelIsatin glycineIsatinAdsorption |
| spellingShingle | B.I. Ita <b>Inhibition of the corrosion of mild steel in hydrochloric acid by isatin and isatin glycine</b> Bulletin of the Chemical Society of Ethiopia Corrosion Inhibition of corrosion Mild steel Isatin glycine Isatin Adsorption |
| title | <b>Inhibition of the corrosion of mild steel in hydrochloric acid by isatin and isatin glycine</b> |
| title_full | <b>Inhibition of the corrosion of mild steel in hydrochloric acid by isatin and isatin glycine</b> |
| title_fullStr | <b>Inhibition of the corrosion of mild steel in hydrochloric acid by isatin and isatin glycine</b> |
| title_full_unstemmed | <b>Inhibition of the corrosion of mild steel in hydrochloric acid by isatin and isatin glycine</b> |
| title_short | <b>Inhibition of the corrosion of mild steel in hydrochloric acid by isatin and isatin glycine</b> |
| title_sort | b inhibition of the corrosion of mild steel in hydrochloric acid by isatin and isatin glycine b |
| topic | Corrosion Inhibition of corrosion Mild steel Isatin glycine Isatin Adsorption |
| url | http://www.ajol.info/index.php/bcse/article/view/21168 |
| work_keys_str_mv | AT biita binhibitionofthecorrosionofmildsteelinhydrochloricacidbyisatinandisatinglycineb |