Abstract
The inhibitive effects and interfacial tensions of solutions of natural naphthenates in the passivation of the steel surface in sea water were studied by electrochemical and stalagmometric methods. According to the data obtained, Ca2+, Ni2+, and Co2+ naphthenates suppress the anodic and cathodic polarization of steel. The biocidal effects of the naphthenates in sea and stratal waters were determined. It was found that treatment of sea water with calcium naphthenate protects steel equipment from both electrochemical and microbial corrosion.
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