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Study of 1-(4-Isohexylphenoxy)-3-propylpyridinium and 1-(4-Isohexylphenoxy-2-diethylaminomethyl)-3-propylpyridinium Bromide As Inhibitors of Acid Corrosion.
- Source :
- Russian Journal of Physical Chemistry; Mar2024, Vol. 98 Issue 3, p484-489, 6p
- Publication Year :
- 2024
-
Abstract
- Results are presented from gravimetric anti-corrosion studies of pyridine salts 1-(4-isohexylphenoxy-)-3-propylpyridinium bromide (I) and 1-(4-isohexylphenoxy-2-diethylaminostil-)-3-pyridinium bromide (II) on St. 3 steel in 0.5 N Н<subscript>2</subscript>SO<subscript>4</subscript>. The effect the temperature (298, 303, 313, 323, 333 K) and concentrations of compounds (0.025, 0.05, and 0.1 g/L) have on the rate of corrosion and protective effect is studied (duration of test, 3 h). It is established that compounds I and (especially) II are strong inhibitors: the degree of protection against corrosion for St.3 steel at concentrations of 0.1 g/L is 96% on average. The thermodynamic parameters of the process (ΔG, ΔH, and ΔS) are calculated, and the blocking mechanism for protecting the metal surface from corrosion is considered. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00360244
- Volume :
- 98
- Issue :
- 3
- Database :
- Complementary Index
- Journal :
- Russian Journal of Physical Chemistry
- Publication Type :
- Academic Journal
- Accession number :
- 179278346
- Full Text :
- https://doi.org/10.1134/S0036024424030051