| Autor: |
Dilasari, Bonita, Nugraha, Alvin Adi, Sari, Mira Permata, Soepriyanto, Syoni |
| Předmět: |
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| Zdroj: |
Journal of Chemical Technology & Metallurgy; 2021, Vol. 56 Issue 3, p660-666, 7p |
| Abstrakt: |
Mild steel is a common material used for pipeline construction in the oil and gas industry despite their susceptibility to corrosion. Therefore, addition of corrosion inhibitor is necessary to control the corrosion. The use of organic inhibitors made of pharmaceutical compound is gaining high attention nowadays because they are nontoxic, environmentally friendly, low cost, and highly available. In this study, two types of organic inhibitors were studied, namely ketoconazole and fluconazole in a mixed solution of 1 M HCl and 1 M Na2CO3. It is found that ketoconazole gives higher efficiency up to 68 % in the tested concentration range, while fluconazole gives only 53 %. Both inhibitors have a similar model of equivalent electrical circuit, Rs-(CPEi/Ri)-(CPEp(Rp(CPEdl/Rct)), which indicates the formation of porous corrosion products and the presence of a quasi-homogeneous adsorbed inhibitor layers on the mild steel surface. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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