Cashew nut shell liquid as an alternative corrosion inhibitor for carbon steels.

Philip, Jyn; Buchweishaija, Joseph; Mkayula, Lupituko L.

doi:10.4314/tjs.v27i1.18332

Cited by 13 publications

(10 citation statements)

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“…These results can be attributed to the decrease in the thickness of double layer due to the replacement of the electrolyte molecules on mild steel surface by adsorption of the APPs inhibitor molecules [13]. Similar findings were also reported elsewhere [14]- [16].…”

Section: Electrochemical Impedance Spectroscopy Measurementssupporting

confidence: 87%

Corrosion Inhibition of Amino Pentadecylphenols (APPs) Derived from Cashew Nut Shell Liquid on Mild Steel in Acidic Medium

Philip¹,

Buchweshaija²,

Mwakalesi³

2016

MSA

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In this study, corrosion inhibiting properties of amino pentadecylphenols (APPs) derived from Cashew Nut Shell Liquid (CNSL) on mild steel in aerated 0.10 M HCl at 303 K were studied using Electrochemical Impedance Spectroscopy (EIS) and potentiodynamic polarization measurements. Both methods indicated the potential of a mixture of amino pentadecyphenols to serve as a corrosion inhibitor in mild steel in 0.10 M HCl. Corrosion inhibition efficiencies were observed to increase with increase in the inhibitor concentration, with maximum corrosion inhibition of about 98% at inhibitor concentration of 600 ppm. The adsorption of the inhibitor on mild steel surface was found to obey Temkin adsorption isotherm, signifying physical adsorption of the inhibitor molecules on mild steel surface.

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Section: Electrochemical Impedance Spectroscopy Measurementssupporting

confidence: 87%

Corrosion Inhibition of Amino Pentadecylphenols (APPs) Derived from Cashew Nut Shell Liquid on Mild Steel in Acidic Medium

Philip¹,

Buchweshaija²,

Mwakalesi³

2016

MSA

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“…This suggests that, 600 ppm could be considered as the optimum inhibitor concentration forming the optimum protective film on the substrate surface against the charge transfer. The impedance spectra for different Nyquist plots were analyzed using a Complex Nonlinear Least Squares (CNLS) fitting program, EQUIVCRT and the equivalent circuit model and relevant relations used are described elsewhere [14]. The values of elements fitted the model, that is, charge transfer resistances (R ct ) and that of double layer capacitances (C dl ) calculated are listed in Table 2.…”

Section: Resultsmentioning

confidence: 99%

“…The tests were carried out in a 100 mL three electrodes thermostatically controlled cell made of Pyrex glass with a Rotating Disk Electrode (RDE) assembly. The experimental set up has been described in detail elsewhere [14]. The corrosive medium was chlorinated drinking water collected from Upper Ruvu water work, Coast region, Tanzania.…”

Section: Methodsmentioning

confidence: 99%

Natural Products as a Source of Environmentally Friendly Corrosion Inhibitors: The Case of Gum Exudate from Acacia seyal var. seyal

Buchweishaija¹,

Mhinzi²

2007

Port. Electrochim. Acta

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The inhibitive effect of the gum exudate from Acacia seyal var. seyal on the corrosion of mild steel in drinking water was investigated using potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) techniques. The results obtained show that gum exudates could serve as effective inhibitors for the corrosion of steel in drinking water network. The percentage inhibition increases with increasing the concentration of the gum at 30 o C. The percentage inhibitor efficiency above 95 % was attained at gum concentration ≥400 ppm. The corrosion rates of steel and inhibition efficiencies of the gum exudates obtained from impedance and polarization measurements were in good agreement. Potentiodynamic polarization studies clearly reveal that the gum behaves predominantly as an anodic inhibitor. The study also shows that the inhibition efficiency was insignificantly affected by the temperature rise of the medium.

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“…[9][10][11] Due to these advantages, extracts of some common plants and plant products have been tried as corrosion inhibitors for metals and alloys under different environment. [12][13][14][15][16][17] The above attributes have made plants to become an important source of a wide range of eco-friendly (green) corrosion inhibitors.…”

Section: Introductionmentioning

confidence: 99%

Plant Extracts as Green Corrosion Inhibitors in Various Corrosive Media- A Review

Rathi¹

2017

WJPPS

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Corrosion of materials has continued to receive interest in the technological world. Corrosion is an unavoidable but a controllable process. The use of plant extracts as green corrosion inhibitors is one of the best options of protecting metals and alloys. Large numbers of organic compounds were studied to investigate their corrosion inhibition potential. All these studies indicate that organic compounds those contain N, S and O in their structures showed significant inhibition efficiency. But due to the toxicity of organic corrosion inhibitors to the environment has prompted the search for green corrosion inhibitors as they are biodegradable and do not contain heavy metals or other toxic compounds. This review briefly discusses some of the interesting features of the green inhibitors reported during the last decade.

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Cashew nut shell liquid as an alternative corrosion inhibitor for carbon steels.

Cited by 13 publications

References 0 publications

Corrosion Inhibition of Amino Pentadecylphenols (APPs) Derived from Cashew Nut Shell Liquid on Mild Steel in Acidic Medium

Corrosion Inhibition of Amino Pentadecylphenols (APPs) Derived from Cashew Nut Shell Liquid on Mild Steel in Acidic Medium

Natural Products as a Source of Environmentally Friendly Corrosion Inhibitors: The Case of Gum Exudate from Acacia seyal var. seyal

Plant Extracts as Green Corrosion Inhibitors in Various Corrosive Media- A Review

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