ISJ Theoretical & Applied Science 04(108) 2022

Philadelphia, USA

Nomozov, A., Beknazarov, Kh., Khodzhamkulov, S., & Yuldasheva, S.

The studying of application of salsola oppositifolia extract in 0.5 M l of sulfuric acid as a green inhibitor for corrosion of carbon steel.

Full Article: PDF

Scientific Object Identifier: http://s-o-i.org/1.1/TAS-04-108-15

DOI: https://dx.doi.org/10.15863/TAS.2022.04.108.15

Language: English

Citation: Nomozov, A., Beknazarov, Kh., Khodzhamkulov, S., & Yuldasheva, S. (2022). The studying of application of salsola oppositifolia extract in 0.5 M l of sulfuric acid as a green inhibitor for corrosion of carbon steel. ISJ Theoretical & Applied Science, 04 (108), 70-77. Soi: http://s-o-i.org/1.1/TAS-04-108-15 Doi: https://dx.doi.org/10.15863/TAS.2022.04.108.15

Pages: 70-77

Published: 30.04.2022

Abstract: In recent years, we can see that in the protection of metals from corrosion, effective results are obtained using not only corrosion inhibitors synthesized by chemical methods, but also extracts from various parts of plants. In this article, research has been conducted on obtaining an eco-friendly inhibitor and its application in practice. The source of the green inhibitor was the Salsola oppositifolia plant, from which the method of obtaining the green inhibitor extract and extrareagents were studied. The obtained extract was studied as a green inhibitor in 0.5 M H2SO4 solution for corrosion protection of carbon steel structures. In determining the efficacy of a green inhibitor derived from the salsola oppositifolia plant, practical experiments were performed at two different temperatures (298 K and 313 K) and at different concentrations (200 mg / l, 400 mg / l, 600 mg / l, and 1000 mg / l). Adsorption of Green inhibitor on steel surface was studied using Langmuir and Temkin isotherms. The effect of temperature and concentration on the corrosion rate was also studied. The gravimetric method was used to determine the effectiveness of the green inhibitor and it was found that its maximum concentration was 91.86%. The mechanism of action of the Green inhibitor on the steel surface and a post-experimental steel sample were studied by SEM analysis. Salsola oppositifolia plant extract contains a number of flavonoids, iso flavonoids (isorhamnetin-3-O-glucoside and isorhamnetin-3-O-rutinoside), organic acids (Methyl palmitate, palmitic acid, Linoleic acid, linoleic acid). 2-hydroxy-1- (hydroxymethyl) ethyl ester) and tetrahydroisoquinoline. Salsola oppositifolia extract is a good green inhibitor due to the presence of hetero atomic organic compounds in the main component.

Key words: Salsola oppositifolia, green inhibitor, Langmuir izotermasi, Temkin isotherm, H2SO4.