Document Details

Document Type : Article In Journal 
Document Title :
INHIBITION EFFECT OF PHENACYL DIMETHYL SULFONIUM BROMIDE AND SOME OF ITS P- SUBSTITUTED DERVATIVES ON CORROSION OF MILD STEEL IN ACID SOLUTIONS
التأثير التثبييطي ببروميدات فينيل ثنائي ميثيل سلفونيوم ومشتقاته المستبدلة في الوضع بارا على تأكل الحديد الصلب في الأوساط الحمضي
 
Subject : Scientific Research 
Document Language : English 
Abstract : The effect of six sulfonium bromides which have the formula (4-x-phenacyl dimethyl Sulfonium bromide, where x= H, CH3, Cl , Br , NO2 and OCH3) on the corrosion of mild steel in 1.0M H2SO4 and 2.0M HCl was studied by chemical, electrochemical and scanning electron microscopy methods. Inhibition of corrosion by physical adsorption was found, also the Kada, and ∆Gads was calculated the negative values of ∆Gads., are characteristic feature of strong adsorption. A flat configuration through π electrons of phenyl ring was suggested. The studied compounds were found to be a mixed type of inhibitors, ba and bc are recorded in absence and presence of studied compounds. The obtained data from impedance spectroscopy shows that the corrosion of mild steel in both acids was mainly controlled by charge transfer process in the presence of the studied compounds. The values of Inh.% calculated from all used methods were in good agreement. 
ISSN : 1012-1319 
Journal Name : Science Journal 
Volume : 15 
Issue Number : 1 
Publishing Year : 1424 AH
2004 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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 34000.pdf pdfAbstract
 34146.pdf pdfملخص البحث

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