Synthesis and evaluation of some new hydrazones as corrosion inhibitors for mild steel in acidic media

  • Hassane Lgaz
  • Abdelkarim Chaouiki
  • Mustafa R. Albayati
  • Rachid Salghi
  • Yasmina El Aoufir
  • Ismat H. Ali
  • Mohammad I. Khan
  • Shaaban K. Mohamed
  • Ill-Min ChungEmail author


Mild steel corrosion in HCl solution is an example of corrosion in acidic mediums. The ongoing research efforts to develop novel environmentally friendly corrosion inhibitors raise questions regarding their ability to effectively protect steel from corrosion. Herein, a series of experimental studies were conducted to explain the scientific mechanism of adsorption of four hydrazone derivatives (HDZs) namely, 2-((2,3-dimethylphenyl)amino)-N′-((1E,2E)-3-phenylallylidene)benzohydrazide (HDZ1) (E)-2-((2,3-dimethylphenyl)amino)-N′-(4-hydroxybenzylidene)benzohydrazide (HDZ2) (E)-2-((2,3-dimethylphenyl)amino)-N′-(1-phenylethylidene)benzohydrazide (HDZ3) and N′-cyclohexylidene-2-((2,3-dimethylphenyl)amino)benzohydrazide (HDZ4) on mild steel (MS) in 1.0 M HCl using chemical, electrochemical and surface characterization techniques. All results show that the inhibitor molecules form a stable layer on steel surface through chemical and physical interactions. HDZs adsorption onto the steel surface was found to follow Langmuir model. Furthermore, electrochemical results demonstrated that our developed inhibitors act as mixed-type inhibitors, with HDZ1 showing the highest polarization resistance and lowest corrosion current density. X-ray diffraction and scanning electron microscope were used to study corrosion products phases and surface morphology of MS samples. Our findings provide deeper insights into understanding the interaction mechanisms of HDZs with a steel surface and can be helpful to explore novel approaches to mitigate the steel dissolution.


Mild steel Corrosion inhibition HCl Hydrazone derivative Mefenamic acid 



The authors extend their appreciation to the Deanship of Scientific Research at King Khalid University for funding this work through research groups program under Grant Number R.G.P-1.21-38.

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.

Supplementary material

11164_2018_3730_MOESM1_ESM.docx (2.2 mb)
Supplementary material 1 (DOCX 2229 kb)


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Copyright information

© Springer Nature B.V. 2019

Authors and Affiliations

  • Hassane Lgaz
    • 1
  • Abdelkarim Chaouiki
    • 2
  • Mustafa R. Albayati
    • 3
  • Rachid Salghi
    • 2
  • Yasmina El Aoufir
    • 4
  • Ismat H. Ali
    • 5
  • Mohammad I. Khan
    • 6
  • Shaaban K. Mohamed
    • 7
    • 8
  • Ill-Min Chung
    • 1
    Email author
  1. 1.Department of Crop Science, College of Sanghur Life ScienceKonkuk UniversitySeoulSouth Korea
  2. 2.Laboratory of Applied Chemistry and Environment, ENSAUniversity Ibn ZohrAgadirMorocco
  3. 3.Department of Chemistry, College of EducationKirkuk UniversityKirkukIraq
  4. 4.Materials, Nanotechnology and Environment Laboratory, Faculty of SciencesMohammed V University RabatRabatMorocco
  5. 5.Department of Chemistry, College of ScienceKing Khalid UniversityAbhaKingdom of Saudi Arabia
  6. 6.Chemical Engineering Department, College of EngineeringKing Khalid UniversityAbhaKingdom of Saudi Arabia
  7. 7.Faculty of Science and Engineering, Health Care DivisionManchester Metropolitan UniversityManchesterUK
  8. 8.Chemistry Department, Faculty of ScienceMinia UniversityEl-MiniaEgypt

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