Corrosion inhibition and Biocidal effect of some cationic surfactants based on Schiff base

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• 作者：Samy M. Shaban ; Atef Saied ; Salah M. Tawfik ; A. Abd-Elaal ; Ismail Aiad
• 关键词：Cationic surfactants ; Corrosion inhibition ; Sulfate reducing bacteria
• 刊名：Journal of Industrial and Engineering Chemistry
• 出版年：2013
• 出版时间：25 November, 2013
• 年：2013
• 卷：19
• 期：6
• 页码：2004-2009
• 全文大小：912 K

文摘

The three cationic surfactants based on Schiff base were laboratory prepared, (E)-decyl-4-[(2-hydroxyethylamino) methyl]-N,N-dimethyl benzenaminium bromide (I), (E)-dodecyl-4-[(2-hydroxyethylamino)methyl]-N,N-dimethyl benzenaminium bromide (II) and (E)-hexadecyl-4-[(2-hydroxyethylamino)methyl]-N,N-dimethyl benzenaminium bromide (III) were evaluated as corrosion inhibitors for carbon steel in acid medium and antimicrobial agents against sulfate reducing bacteria, SRB. Three techniques were used for the corrosion inhibition evaluation, namely; weight loss, polarization and electrochemical impedance. The serial dilution method was used to evaluate the inhibiting effect of these compounds on the sulfate reducing bacteria growth. The results showed that the prepared compounds have good antimicrobial activities against the SRB as well as they have high efficiency as corrosion inhibitors for carbon steel in 1 M HCl.