Surface active and thermodynamic properties of some surfactants derived from locally linear and heavy alkyl benzene in relation to corrosion inhibition efficiency

Linear and heavy alkyl benzene (HAB) were sulfonated with fuming sulfuric acid (oleum) and the sulfonated products were esterified with tri and poly ethanolamine (d = 4 and 6). The prepared three esters from each series were quaternized with n‐butyl bromide. The resulted six quaternized ester of lin...

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Bibliographic Details
Published in:Materials and corrosion 2011-11, Vol.62 (11), p.1015-1030
Main Authors: Al-Sabagh, A. M., Abd-El-Bary, H. M., El-Ghazawy, R. A., Mishrif, M. R., Hussein, B. M.
Format: Article
Language:English
Subjects:
adsorption
Applied sciences
Corrosion
Corrosion environments
corrosion inhibitors
Corrosion prevention
Exact sciences and technology
Metals. Metallurgy
quaternary ammonium salts
surface active properties
surfactant
thermodynamic
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Summary:Linear and heavy alkyl benzene (HAB) were sulfonated with fuming sulfuric acid (oleum) and the sulfonated products were esterified with tri and poly ethanolamine (d = 4 and 6). The prepared three esters from each series were quaternized with n‐butyl bromide. The resulted six quaternized ester of linear and HAB sulfonate were named as (L1Q, L2Q, L3Q, H1Q, H2Q, and H3Q). The surface and thermodynamic properties of these compounds have been investigated. From the data obtained, it was found that surface tension and surface active properties for the HAB derivatives were better than which obtained from linear alkyl benzene (LAB) derivatives. From the results obtained from the surface activity, the best performance compound from each group was selected to study the corrosion inhibition efficiency of them relative to the surface activity. The obtained results show that the LAB derivative L3Q exhibited inhibition efficiency (93.1%) at 1000 ppm but H3Q exhibited (97%) at 600 ppm. The diversity of the resulted data obtained was discussed in the light of chemical structure of the alkyl benzene sulfonate.
ISSN:0947-5117
1521-4176
DOI:10.1002/maco.201006017