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Evaluation of N,N-Dimethylformamide as Corrosion Inhibitor on API 5L X70 using 3% NaCl

  • Pablo Martínez Jiménez (a1), Araceli Espinoza Vázquez (a1) and Francisco Javier Rodríguez Gómez (a1)

Abstract

Dimethylformamide (DMF) has been tested as corrosion inhibitor in a metallic material like API 5LX70 in a corrosive solution of 3% of NaCl and using electrochemical technique as electrochemical impedance spectroscopy. The results showed that 20 ppm is the best concentration to protect the metallic surface of API 5L X70 with η∼ 94%. Hydrodynamic conditions (100 and 1000 rpm) demonstrated that the DMF at different concentration afforded moderate protection against corrosion with inhibition efficiency ∼70%. Finally, the adsorption of this compound follows the Langmuir isotherm with a chemisorption-physisorption process.

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*Corresponding author: arasv_21@yahoo.com.mx

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Keywords

Evaluation of N,N-Dimethylformamide as Corrosion Inhibitor on API 5L X70 using 3% NaCl

  • Pablo Martínez Jiménez (a1), Araceli Espinoza Vázquez (a1) and Francisco Javier Rodríguez Gómez (a1)

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