Antiсorrosion Properties of Quaternary Nitrogen-Containing Derivatives of 2-Allyl-4-isodecylphenol in Aqueous-Salt and Hydrocarbon Systems

The paper presents the results of anticorrosion gravimetric studies of the quaternary nitrogen-containing derivatives of 2-allyl-4-isodecylphenol, namely, the quaternary ammonium salts 2-allyl-4-isodecyl-6-diethylaminomethylphenol (I) and 2-allyl-4-isodecyl-6-piperidinomethylphenol (II) on steel St....

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Bibliographic Details
Published in:Russian Journal of Physical Chemistry A 2024-11, Vol.98 (11), p.2495-2499
Main Authors: Bairamov, M. R., Dzhavadov, M. A., Agaeva, M. A., Mekhtieva, G. M., Gasanova, G. M., Dzhavadova, Z. M.
Format: Article
Language:English
Subjects:
Chemical Kinetics and Catalysis
Chemistry
Chemistry and Materials Science
Physical Chemistry
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Summary:The paper presents the results of anticorrosion gravimetric studies of the quaternary nitrogen-containing derivatives of 2-allyl-4-isodecylphenol, namely, the quaternary ammonium salts 2-allyl-4-isodecyl-6-diethylaminomethylphenol (I) and 2-allyl-4-isodecyl-6-piperidinomethylphenol (II) on steel St.3 plates in a system consisting of a 3% aqueous NaCl solution and hydrocarbons (kerosene) at a ratio of 9 : 1 (vol/vol). The influence of the temperature and concentration of the compounds on the corrosion rate, metal surface coverage, and protective effect was studied (test time 5 h). Compounds I and II were found to have high inhibitory properties. The thermodynamic parameters of adsorption (Δ G , Δ H , Δ S ) were determined, based on which the chemisorption blocking mechanism of steel St.3 surface protection was proposed. The chemisorption process is described by the Langmuir isotherm.
ISSN:0036-0244
1531-863X
DOI:10.1134/S003602442470167X