Document Details

Document Type : Article In Journal 
Document Title :
THE EFFECT OF TEMPERATURE ON THE INHIBITION OF THE ACID CORROSION OF MILD STEEL BY SOME SULFONIUM BROMIDE DERIVATIVES
تأثير درجة الحرارة على التثبط الحمضي لتأكل الحديد الصلب باستخدام بعض مشتقات بروميدات فينيل ثنائي ميثيل سلفونيوم.
 
Subject : Scientific Research 
Document Language : English 
Abstract : The effect of temperature in the range(20-60 ) °C on the performs of sulfonium bromides at a fixed concentration of each of them on mild steel corrosion in 2.ON H2SO4 , HCl of and H3PO4 acids solutions using chemical methods (HEM and MLM), was carried out. It was found that in 2.0N H2SO4 solution the corrosion of mild steel increases with rising temperature from 20°C to 60°C for all the studied compounds except compound F who give an increase in Inh.% with rising temperature. In 2.0N HCl and 2.0N H3PO4 solutions It was clear that for most compounds the Inh.% or acceleration of corrosion decreases with increasing temperature. A decrease in the corrosion rate or an increase in Inh.% with increasing temperature is occurred only in some compounds in all the three acids, when the temperature reached 50°C. The decrease in inhibition efficiency or in acceleration of corrosion with temperature indicates that most of these compound are physically adsorbed on the mild steel surface and it also indicates that the inhibited film formed on the metal surface is less protective in nature at higher temperatures. Desorption of the inhibitor molecules from the metal surface most probably occurs with faster rates at high temperatures. The values of apparent activation energy ∆Eapp of the dissolution of mild steel in 2.0N of the three acids in absence and presence of the studied compounds were calculated 
ISSN : 1012-1319 
Journal Name : Science Journal 
Volume : 12 
Issue Number : 4 
Publishing Year : 1422 AH
2002 AD 
Article Type : Article 
Added Date : Monday, July 23, 2012 

Researchers

Researcher Name (Arabic)Researcher Name (English)Researcher TypeDr GradeEmail
سناء طاهر عربArab, Sanaa TaherInvestigatorDoctoratedr.s.arab@hotmail.com
عيشة محمود التركستانيAL-TURKUSTANI, Aisha MahmmodResearcherDoctorateA.M.Turkustani@hotmail.com

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 33999.pdf pdfAbstract
 34121.pdf pdfملخص البحث
 36788.pdf pdfScientific Research

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