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العنوان
Inhibition of the acid corrosion of 6163 aluminium by some thiazolidinone derivatives /
المؤلف
Motawea, Mariem Mohamed Ahmed.
هيئة الاعداد
باحث / مريم محمد احمد متاوية
مشرف / محمد فتحي الشربيني
مشرف / مصطفي امين دياب
مشرف / عبدالعزيز السيد فؤاد
الموضوع
Corrosion. Aluminium.
تاريخ النشر
2005.
عدد الصفحات
143 p. :
اللغة
الإنجليزية
الدرجة
ماجستير
التخصص
الكيمياء
تاريخ الإجازة
1/1/2005
مكان الإجازة
جامعة المنصورة - كلية العلوم - Department of Chemistry
الفهرس
Only 14 pages are availabe for public view

from 135

from 135

Abstract

Polarization and weight­loss methods have been used to study the inhibition of corrosion of 6163aluminium in 3M H3PO4 solutions by using some thiazolidinone derivatives. the results showed that the order of the percentage inhibition efficiency (I E) is : a>b>c>d>e. the results of polarization showed that, these compounds act as mixed type inhibitors, but the anode is more polarized when an external current was applied. The effect of temperature on the corrosion rate of 6163 aluminium was studied in order to obtain the thermodynamic parameters of corrosion process. The adsorption of thiazolidinone derivatives on the 6163aluminum surface in 3M H3PO4 follows Temkin<U+2019>s adsorption isotherm. (I E) of all the investigated compounds are increased significantly on addition of small concentrations of KI, KSCN and KBr in H3PO4 due to synergism