کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1471610 | 990355 | 2008 | 12 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Mercaptopyrimidines as inhibitors of carbon dioxide corrosion of iron
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The inhibition activity of 2-mercaptopyrimidine (I), 2-mercapto-4-methylpyrimidine hydrochloride (II), 2-mercapto-4,6-dimethylpyrimidine (III) and its hydrochloride (IV) upon carbon dioxide corrosion of iron has been studied in a wide range of concentrations at 40–90 °C using electrochemical and mass-spectrometry methods. High activity has been found for all compounds (P = 80–99%) at very low concentrations (0.02–5 mg/l). Adsorption of inhibitor by metal not only blocks its surface but changes the reaction mechanism as well. Charge transfer is the limiting stage of both cathode and anode reactions. The title compounds can be considered as inhibitors of what is a mixed type with prevailing effect on the anode reaction.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Corrosion Science - Volume 50, Issue 2, February 2008, Pages 392–403
Journal: Corrosion Science - Volume 50, Issue 2, February 2008, Pages 392–403
نویسندگان
V.S. Reznik, V.D. Akamsin, Yu.P. Khodyrev, R.M. Galiakberov, Yu.Ya. Efremov, L. Tiwari,