Inhibitive impacts extract of Citrus aurantium leaves of carbon steel in corrosive media
| Autor: | Rifat Mohammed Dakhil, Tayser Sumer Gaaz, Ahmed A. Al-Amiery, Abdul Amir H. Kadhum |
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| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: | |
| Zdroj: | Green Chemistry Letters and Reviews, Vol 11, Iss 4, Pp 559-566 (2018) |
| Druh dokumentu: | article |
| ISSN: | 1751-8253 1751-7192 17518253 |
| DOI: | 10.1080/17518253.2018.1547796 |
| Popis: | Relatively inexpensive, stable plant extract, namely Citrus aurantium leaves, was employed as highly efficient inhibitor of carbon steel corrosion by corrosive acid. The inhibition efficiency was estimated based on the weight loss method. Inhibition impacts of researched inhibitor increase with the concentration of the plant extract increase. The inhibition efficiency depends on three factors: molecular structure, concentration, and molecular weight of the inhibitor. Inhibition efficiency of 81.2% was achieved with 20% (v/v) of the extract in 1 M hydrochloric acid during 3 h at 25°C. The effect of temperature was also investigated and activation parameters were evaluated. Inhibition adsorption characteristics were approximated by Langmuir adsorption isotherm. Chemical adsorption mechanism was proposed for the studied inhibitor from the trend of inhibition performance and temperature degree in addition to activation energy values and heat of adsorption. |
| Databáze: | Directory of Open Access Journals |
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