An investigation of copper corrosion inhibition in chloride solutions by benzo-hydroxamic acids

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Abstract

Benzo-hydroxamic acids (BHA) are investigated as potential copper corrosion inhibitors in chloride solution. The BHAs investigated were: p-chloro-benzo-hydroxamic (p-Cl-BHA), o-chloro-benzo-hydroxamic acid (o-Cl-BHA), p-nitro-benzo-hydroxamic acid (p-N-BHA) and o-methyl-benzo-hydroxamic acid (o-M-BHA). Electrochemical measurements, potentiostatic polarization and ac impedance spectroscopy were carried out to evaluate the inhibition effect of the investigated BHAs. An Electrochemical Quartz Crystal Microbalance (ECQM) was used to measure electrode corrosion and inhibitor adsorption or layer formation processes. A poorly soluble layer consisting of the inhibitor and copper corrosion products is proposed to account for the protective effect in chloride solutions.

Original languageEnglish
Pages (from-to)159-163
Number of pages5
JournalElectrochimica Acta
Volume43
Issue number1-2
Publication statusPublished - 1998

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Copper corrosion
Hydroxamic Acids
Chlorides
Corrosion inhibitors
Butylated Hydroxyanisole
Acids
Quartz crystal microbalances
Spectroscopy
Polarization
Corrosion
Adsorption
Electrodes

Keywords

  • Benzo-hydroxamic acids
  • Copper corrosion inhibition
  • Quartz crystal microbalance

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Analytical Chemistry
  • Electrochemistry

Cite this

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abstract = "Benzo-hydroxamic acids (BHA) are investigated as potential copper corrosion inhibitors in chloride solution. The BHAs investigated were: p-chloro-benzo-hydroxamic (p-Cl-BHA), o-chloro-benzo-hydroxamic acid (o-Cl-BHA), p-nitro-benzo-hydroxamic acid (p-N-BHA) and o-methyl-benzo-hydroxamic acid (o-M-BHA). Electrochemical measurements, potentiostatic polarization and ac impedance spectroscopy were carried out to evaluate the inhibition effect of the investigated BHAs. An Electrochemical Quartz Crystal Microbalance (ECQM) was used to measure electrode corrosion and inhibitor adsorption or layer formation processes. A poorly soluble layer consisting of the inhibitor and copper corrosion products is proposed to account for the protective effect in chloride solutions.",
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T1 - An investigation of copper corrosion inhibition in chloride solutions by benzo-hydroxamic acids

AU - Shaban, A.

AU - Kálmán, E.

AU - Telegdi, J.

PY - 1998

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N2 - Benzo-hydroxamic acids (BHA) are investigated as potential copper corrosion inhibitors in chloride solution. The BHAs investigated were: p-chloro-benzo-hydroxamic (p-Cl-BHA), o-chloro-benzo-hydroxamic acid (o-Cl-BHA), p-nitro-benzo-hydroxamic acid (p-N-BHA) and o-methyl-benzo-hydroxamic acid (o-M-BHA). Electrochemical measurements, potentiostatic polarization and ac impedance spectroscopy were carried out to evaluate the inhibition effect of the investigated BHAs. An Electrochemical Quartz Crystal Microbalance (ECQM) was used to measure electrode corrosion and inhibitor adsorption or layer formation processes. A poorly soluble layer consisting of the inhibitor and copper corrosion products is proposed to account for the protective effect in chloride solutions.

AB - Benzo-hydroxamic acids (BHA) are investigated as potential copper corrosion inhibitors in chloride solution. The BHAs investigated were: p-chloro-benzo-hydroxamic (p-Cl-BHA), o-chloro-benzo-hydroxamic acid (o-Cl-BHA), p-nitro-benzo-hydroxamic acid (p-N-BHA) and o-methyl-benzo-hydroxamic acid (o-M-BHA). Electrochemical measurements, potentiostatic polarization and ac impedance spectroscopy were carried out to evaluate the inhibition effect of the investigated BHAs. An Electrochemical Quartz Crystal Microbalance (ECQM) was used to measure electrode corrosion and inhibitor adsorption or layer formation processes. A poorly soluble layer consisting of the inhibitor and copper corrosion products is proposed to account for the protective effect in chloride solutions.

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