أعضاء هيئة التدريس - جامعة بنها
Some organic and inorganic compounds as inhibitors for carbon steel corrosion in 3.5 percent NaCl solution.
Anti-Corrosion Methods and Materials • 2006
معلومات البحث
المؤلفون
Abdallah, M., El-Etre, A.Y., Soliman, M.G., Mabrouk, E.M.
الكلمات المفتاحية
Carbon, Steel, Inorganic chemistry, Acids, Dyes
المجلة العلمية
Anti-Corrosion Methods and Materials
الناشر
Emerald
المجلد
53
العدد
(2)
الصفحات
118-123
publication.type
International
رابط البحث
Open Link
المواد المرفقة
Not Available
الملخص
Purpose
– To study the effects of the sodium salts of molybdate, tungstate and monovanadate as well as some derivatives of Neville‐Winter acid azo dyes on the corrosion of carbon steel in 3.5 percent NaCl solution.
Design/methodology/approach
– Open circuit potential measurement and potentiostatic polarization techniques have been used.
Findings
– It was found that all the compounds had inhibition effects on carbon steel dissolution. Inhibition efficiency (IE) increased with increase in inhibitor concentration. The process of inhibition was attributed to the formation of an adsorbed film on the metal surface, which protects the metal against the corrosive medium. The adsorption of these compounds on the steel/chloride interface was found to follow Freundlich adsorption isotherm behaviour.
Originality/value
– Proves the effectiveness of the sodium salts of molybdate, tungstate and monovanadate as well as some derivatives of Neville‐Winter acid azo dyes on the corrosion of carbon steel in 3.5 percent NaCl solution.
– To study the effects of the sodium salts of molybdate, tungstate and monovanadate as well as some derivatives of Neville‐Winter acid azo dyes on the corrosion of carbon steel in 3.5 percent NaCl solution.
Design/methodology/approach
– Open circuit potential measurement and potentiostatic polarization techniques have been used.
Findings
– It was found that all the compounds had inhibition effects on carbon steel dissolution. Inhibition efficiency (IE) increased with increase in inhibitor concentration. The process of inhibition was attributed to the formation of an adsorbed film on the metal surface, which protects the metal against the corrosive medium. The adsorption of these compounds on the steel/chloride interface was found to follow Freundlich adsorption isotherm behaviour.
Originality/value
– Proves the effectiveness of the sodium salts of molybdate, tungstate and monovanadate as well as some derivatives of Neville‐Winter acid azo dyes on the corrosion of carbon steel in 3.5 percent NaCl solution.