Enhancing the inhibition action of cationic surfactant with sodium halides for mild steel in 0.5 M H sub(2)SO sub(4)

The synergistic effect of N-hexadecylpyridinium bromide (PyC sub(16)Br) and different sodium halides on the corrosion of mild steel in 0.5 M H sub(2)SO sub(4) solution has been investigated using electrochemical methods, X-ray diffraction (XRD) and scanning electron microscope (SEM). Experimental re...

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Bibliographic Details
Published inCorrosion science Vol. 74
Main Authors Khamis, A, Saleh, M M, Awad, MI, El-Anadouli, B E
Format Journal Article
LanguageEnglish
Published 01.09.2013
Subjects
Carbon steels
Cationic
Corrosion
Corrosion prevention
Diffraction
Morphology
Scanning electron microscopy
Sodium halides
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Summary:The synergistic effect of N-hexadecylpyridinium bromide (PyC sub(16)Br) and different sodium halides on the corrosion of mild steel in 0.5 M H sub(2)SO sub(4) solution has been investigated using electrochemical methods, X-ray diffraction (XRD) and scanning electron microscope (SEM). Experimental results showed that the protection efficiency (P sub(icor)) of PyC sub(16)Br improved at either considerable high concentration near its critical micelle concentration (CMC) or in the presence of the different halides with different extents. The synergism parameter (S sub( theta )) is found to be greater than unity indicating high P sub(icor). Corrosion products phases and surface morphology were studied using XRD and SEM, respectively.
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ISSN:0010-938X