Dynamics of formation of during inhibition of steel by sulfanilamide in solutions of hydrochloric acid with different pH

Experimentally proved by the method of polarization resistance formation of protective layers during inhibition steel corrosion by Sulfanilamide in aqueous solutions of hydrochloric acid with different pH. It is shown the difference due to the predominance of the protonated or unprotonated form of t...

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Main Authors: I.M. Kurmakova, O.S. Bondar, I.V. Holub, O.O. Коrolev
Format: Article
Language:English
Published: Vasyl Stefanyk Precarpathian National University 2021-08-01
Series:Фізика і хімія твердого тіла
Subjects:
Online Access:https://journals.pnu.edu.ua/index.php/pcss/article/view/5022
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author I.M. Kurmakova
O.S. Bondar
I.V. Holub
O.O. Коrolev
author_facet I.M. Kurmakova
O.S. Bondar
I.V. Holub
O.O. Коrolev
author_sort I.M. Kurmakova
collection DOAJ
description Experimentally proved by the method of polarization resistance formation of protective layers during inhibition steel corrosion by Sulfanilamide in aqueous solutions of hydrochloric acid with different pH. It is shown the difference due to the predominance of the protonated or unprotonated form of the molecule. It was found that at predominance of protonated forms of molecules  (pH £2,4) formed dense protective films and predominance of unprotonated forms of molecules  (pH ³2,4) are formed layers that do not inhibit diffusion processes. Sulfanilamide provides high and stable inhibition efficiency (<90%) in acid chloride solutions in case of formation protective layers consisting of protonated molecules what to consider when use it.
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spelling doaj.art-ce3059ed451b49a9893acaf501a1d5c42022-12-22T04:11:58ZengVasyl Stefanyk Precarpathian National UniversityФізика і хімія твердого тіла1729-44282309-85892021-08-0122343243610.15330/pcss.22.3.432-4365022Dynamics of formation of during inhibition of steel by sulfanilamide in solutions of hydrochloric acid with different pHI.M. Kurmakova0O.S. Bondar1I.V. Holub2O.O. Коrolev3T.Н. Shevchenko National University "Chernihiv Colehium"T.Н. Shevchenko National University "Chernihiv Colehium"T.Н. Shevchenko National University "Chernihiv Colehium"State Scientific Research Institute of Armament and Military Equipment Testing and CertificationExperimentally proved by the method of polarization resistance formation of protective layers during inhibition steel corrosion by Sulfanilamide in aqueous solutions of hydrochloric acid with different pH. It is shown the difference due to the predominance of the protonated or unprotonated form of the molecule. It was found that at predominance of protonated forms of molecules  (pH £2,4) formed dense protective films and predominance of unprotonated forms of molecules  (pH ³2,4) are formed layers that do not inhibit diffusion processes. Sulfanilamide provides high and stable inhibition efficiency (<90%) in acid chloride solutions in case of formation protective layers consisting of protonated molecules what to consider when use it.https://journals.pnu.edu.ua/index.php/pcss/article/view/5022acid corrosioninhibitionstructural steelsulfanilamidepolarization resistance
spellingShingle I.M. Kurmakova
O.S. Bondar
I.V. Holub
O.O. Коrolev
Dynamics of formation of during inhibition of steel by sulfanilamide in solutions of hydrochloric acid with different pH
Фізика і хімія твердого тіла
acid corrosion
inhibition
structural steel
sulfanilamide
polarization resistance
title Dynamics of formation of during inhibition of steel by sulfanilamide in solutions of hydrochloric acid with different pH
title_full Dynamics of formation of during inhibition of steel by sulfanilamide in solutions of hydrochloric acid with different pH
title_fullStr Dynamics of formation of during inhibition of steel by sulfanilamide in solutions of hydrochloric acid with different pH
title_full_unstemmed Dynamics of formation of during inhibition of steel by sulfanilamide in solutions of hydrochloric acid with different pH
title_short Dynamics of formation of during inhibition of steel by sulfanilamide in solutions of hydrochloric acid with different pH
title_sort dynamics of formation of during inhibition of steel by sulfanilamide in solutions of hydrochloric acid with different ph
topic acid corrosion
inhibition
structural steel
sulfanilamide
polarization resistance
url https://journals.pnu.edu.ua/index.php/pcss/article/view/5022
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AT ivholub dynamicsofformationofduringinhibitionofsteelbysulfanilamideinsolutionsofhydrochloricacidwithdifferentph
AT ookorolev dynamicsofformationofduringinhibitionofsteelbysulfanilamideinsolutionsofhydrochloricacidwithdifferentph