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Effect of Temperature on the Performance of Aloe Extract and Azadirachta Indica Extract in Absence and Presence of Iodide Ions on Aluminum Corrosion in Hydrochloric Acid
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نویسنده
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Al-Turkustani Aisha M. ,Arab Sanna T. ,Al-Dahiri Reema H.
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منبع
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journal of materials and environmental science - 2012 - دوره : 3 - شماره : 6 - صفحه:1163 -1176
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چکیده
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The effect of temperature in the range (20-60). c on the corrosion of aluminum in 0.5 m hydrochloric acid have been investigated using chemical (hydrogen evolution (he) and mass loss (ml) and electrochemical (potentiodyanamic polarization (pdp) and el measurements in the absence and the presence of aloe and/or azadirachta indica (azi) extract without and with iodide ions. it was found that, the inhibition efficiency (inh.%) of aloe extract and/or azi extract increase with rising temperature, this indicate that aloe extract and azi extract are good inhibitors. the synergistic effect between iodide and the molecules of extract (aloe and/or azi) due to the stability of insoluble complex formed on aluminum surface
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کلیدواژه
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Corrosion ,Aloe plant ,Azadirachta Indica ,Effect of temperature ,Aluminum
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آدرس
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King Abd El- Aziz University, Sience College of Education, Chemistry Department, Saudi Arabia, King Abd El- Aziz University, Sience College of Education, Chemistry Department, Saudi Arabia, King Abd El- Aziz University, Sience College of Education, Chemistry Department, Saudi Arabia
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پست الکترونیکی
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a.m.turkustani@hotmail.com
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Authors
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