Innovative surfactant of Gemini-type for dissolution mitigation of steel in pickling HCl medium

Medhat Kamel; Mohamed Hegazy; Salah Rashwan; Mohamed El Kotb

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Innovative surfactant of Gemini-type for dissolution mitigation of steel in pickling HCl medium

Chemical Engineering Thermodynamics | Updated：2026-01-06

- Innovative surfactant of Gemini-type for dissolution mitigation of steel in pickling HCl medium
- Chinese Journal of Chemical Engineering Vol. 34, Issue 6, Pages: 125-133(2021)
- Affiliations：
  
  1. Department of Chemistry, Faculty of Science, Suez Canal University, Ismailia,Egypt,41522
  2. Egyptian Petroleum Research Institute(EPRI), Nasr City,Cairo,Egypt,11727
- Author bio：
- Funds：
- DOI：
  CLC：
- Published：2021
- Accepted：
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Medhat Kamel, Mohamed Hegazy, Salah Rashwan, Mohamed El Kotb. Innovative surfactant of Gemini-type for dissolution mitigation of steel in pickling HCl medium[J]. Chinese Journal of Chemical Engineering, 2021, 34(6): 125-133.
DOI：

Medhat Kamel, Mohamed Hegazy, Salah Rashwan, Mohamed El Kotb. Innovative surfactant of Gemini-type for dissolution mitigation of steel in pickling HCl medium[J]. Chinese Journal of Chemical Engineering, 2021, 34(6): 125-133. DOI：

摘要

Abstract

A new surfactant of Gemini-type

'-((phthylbis(oxy))bis(ethane-2

1-diyl))bis(

-dimethyldodecan- 1-aminium bromide) is prepped confirmed. The dissolution suppression impact of the new compound on steel is performed in 1 mol·L

-1

HCl environment by means of chemical and electrochemical methods. The prepared surfactant is an agreeable dissolution inhibitor for steel. The mitigation efficacy rises with the quantity of the compound. The surfactant belongs to inhibitors of mixed-type. The adsorption of the synthesized compound followed the Langmuir's model. The negative magnitudes of both Δ

ads

and Δ

ads

indicate that the adsorption process proceeds from its own accord and exothermic. The mechanism of adsorption is elucidated by scanning microscopy. It is established that the transfer resistance (

) value rose

where the value of the phase element (CPE) reduced with the amount of synthesized inhibitor. According to the experimental data arrived by surface tension measurements

the prepared compound is a powerful active agent at the air/water boundary.

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