Petroleum quaternary ammonium surfactants mixture synthesized from light naphtha as corrosion inhibitors for carbon steel in 1 m HCl

被引：7
|
作者：
Hamitouche, Houria [1 ]
Khelifa, Abdellah [1 ]
Kouache, Amel [1 ]
Moulay, Saad [2 ]
机构：
[1] Univ Saad Dahlab Blida, Fac Technol, Dept Chim Ind, Lab Genie Chim, Blida 09000, Algeria
[2] Univ Saad Dahlab Blida, Fac Technol, Dept Chim Ind, Lab Chim Phys Mol & Macromol, Blida 09000, Algeria
来源：
CORROSION REVIEWS | 2013年 / 31卷 / 02期
关键词：
adsorption; carbon steel; cationic surfactants mixture; corrosion inhibition; surfactants synthesis; COLD-ROLLED STEEL; CATIONIC GEMINI SURFACTANTS; MILD-STEEL; SYNERGISTIC INHIBITION; SULFURIC-ACID; WEIGHT-LOSS; ADSORPTION; BEHAVIOR; TEMPERATURE; BROMIDE;
D O I：
10.1515/corrrev-2012-0022
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
A quaternary ammonium cationic surfactants mixture was synthesized from light naphtha, petroleum fraction. The mixture was analyzed by Fourier transform infrared spectroscopy and UV/Visible spectroscopy and was evaluated as a corrosion inhibitor for carbon steel in 1 m HCl, by gravimetry, potentiodynamic polarization and electrochemical impedance spectroscopy. The results showed that inhibiting efficiency increased with inhibitor concentration and temperature, and was independent of pH (in the range of 0-4) and immersion time; its optimal value was up to 84% for 560 mg/l at 25 degrees C. Experimental data showed that the cationic surfactants mixture acts as a mixed (anodic and cathodic) inhibitor and conformed to the Langmuir adsorption isotherm. Scanning electron microscopy images revealed the inhibiting capacity of the mixture against carbon steel acid corrosion.
引用
收藏
页码：61 / 72
页数：12
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