Synergistic Effect of Potassium Iodide with Cassia italica Extract on the Corrosion Inhibition of Carbon Steel Used in Cooling Water Systems in 0.5 M H2SO4
| Autor: | M. Elsayed, Hisham H. Al-Zehry, Abd El-Aziz S. Fouda |
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| Rok vydání: | 2018 |
| Předmět: |
Carbon steel
020209 energy Materials Science (miscellaneous) chemistry.chemical_element 02 engineering and technology engineering.material Electrochemistry Iodine Corrosion Metal symbols.namesake Adsorption 0202 electrical engineering electronic engineering information engineering Materials Chemistry Chemistry Mechanical Engineering Metals and Alloys Langmuir adsorption model 021001 nanoscience & nanotechnology Mechanics of Materials visual_art symbols visual_art.visual_art_medium engineering Gravimetric analysis 0210 nano-technology Nuclear chemistry |
| Zdroj: | Journal of Bio- and Tribo-Corrosion. 4 |
| ISSN: | 2198-4239 2198-4220 |
| DOI: | 10.1007/s40735-018-0138-z |
| Popis: | The inhibiting action of Cassia italica on the decay of carbon steel (CS) used in cooling towers in 0.5 M sulphuric acid has been examined by gravimetric method, and electrochemical techniques in addition to surface characterization by different techniques. The inhibition efficiency (%IE) increases with the increase in dose of extract and the temperature. The adsorption of this plant extract on the CS follows the Langmuir adsorption isotherm. Potentiodynamic polarization signified that extract behaves as mixed-type inhibitor. Potassium iodide (KI) was added to extract solution in order to increase (%IE) by synergistic effect between metal surface and extract component. Microbiology activity was also carried out to revise the effect of plant extract on bacteria growth in cooling tower. |
| Databáze: | OpenAIRE |
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