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

页码：61 / 72

页数：12

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