Application of a cosmetic additive as an eco-friendly inhibitor for mild steel corrosion in HCl solution

[Display omitted] The use of the cosmetic ingredient cocamidopropylamine oxide (CAO) to inhibit the corrosion of steel in 0.5mol/LHCl is investigated. Electrochemical and weight loss methods were used to evaluate the inhibiting effect of CAO and the influences of inhibitor concentration and temperat...

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Bibliographic Details
Published in:Journal of colloid and interface science 2016-07, Vol.474, p.68-77
Main Authors: Liao, Liu Li, Mo, Shi, Lei, Jing Lei, Luo, Hong Qun, Li, Nian Bing
Format: Article
Language:English
Subjects:
Acid inhibition
Amine oxide surfactant
Corrosion
Corrosion inhibitors
Cosmetic additive
Cosmetics
Eco-friendly inhibitor
Electrochemical measurements
Ingredients
Inhibition
Mild steel
Oxides
Steels
Surface chemistry
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Summary:[Display omitted] The use of the cosmetic ingredient cocamidopropylamine oxide (CAO) to inhibit the corrosion of steel in 0.5mol/LHCl is investigated. Electrochemical and weight loss methods were used to evaluate the inhibiting effect of CAO and the influences of inhibitor concentration and temperature were determined. It was found that CAO acted as a mix-type inhibitor and was adsorbed chemically onto the steel in HCl solution, and the maximum inhibition efficiency was found at critical micelle concentration (CMC) of CAO in tested corrosive media. Moreover, it was speculated that relationships of the two adsorption sites of the inhibitor and steel surface were different.
ISSN:0021-9797
1095-7103
DOI:10.1016/j.jcis.2016.04.015