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Sanaa Taher Saeed Arab
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 Type
Dr Grade
Email
سناء طاهر عرب
Arab, Sanaa Taher
Investigator
Doctorate
dr.s.arab@hotmail.com
عيشة محمود التركستاني
AL-TURKUSTANI, Aisha Mahmmod
Researcher
Doctorate
A.M.Turkustani@hotmail.com
Files
File Name
Type
Description
34000.pdf
pdf
Abstract
34146.pdf
pdf
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