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Data on environmental sustainable corrosion inhibitor for stainless steel in aggressive environment.

ABSTRACT: This data article contains data related to the research article entitled "enhanced corrosion resistance of stainless steel Type 316 in sulphuric acid solution using eco-friendly waste product" (Sanni et al., 2018). In this data article, a comprehensive effect of waste product and optimized process parameter of the inhibitor in 0.5?M H2SO4 solution was presented using weight loss and potentiodynamic polarization techniques. The presence of the inhibitor (egg shell powder) influenced corrosion resistance of stainless steel. Inhibition efficiency value of 94.74% was recorded as a result of inhibition of the steel by the ionized molecules of the inhibiting compound of the egg shell powder influencing the redox mechanism reactions responsible for corrosion and surface deterioration.

SUBMITTER: Sanni O

PROVIDER: S-EPMC6312790 | biostudies-literature | 2019 Feb

REPOSITORIES: biostudies-literature

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Data on environmental sustainable corrosion inhibitor for stainless steel in aggressive environment.

Sanni Omotayo O Popoola Abimbola Patricia I API

Data in brief 20181130

This data article contains data related to the research article entitled "enhanced corrosion resistance of stainless steel Type 316 in sulphuric acid solution using eco-friendly waste product" (Sanni et al., 2018). In this data article, a comprehensive effect of waste product and optimized process parameter of the inhibitor in 0.5 M H<sub>2</sub>SO<sub>4</sub> solution was presented using weight loss and potentiodynamic polarization techniques. The presence of the inhibitor (egg shell powder) in ...[more]

PMID: 30619922

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Project description:Iron-oxidizing bacteria (FeOB) are some of the initial colonizing organisms during microbially influenced corrosion of steel infrastructure. To better understand the abiotic conditions under which FeOB colonize steel, an environmental study was conducted to determine the effects of salinity, temperature, dissolved oxygen levels, and steel type on FeOB colonization. Stainless steel (304 and 316 [i.e., 304SS and 316SS]) was used to determine the potential susceptibility of these specialized corrosion-resistant steels. Steel coupon deployments along salinity gradients in two river systems revealed attachment by FeOB at all sites, with greater abundance of FeOB at higher salinities and on 316SS, compared to 304SS. This may be due to the presence of molybdenum in 316SS, potentially providing a selective advantage for FeOB colonization. A novel Zetaproteobacteria species, Mariprofundus erugo, was isolated from these stainless steel samples. Genes for molybdenum utilization and uptake and reactive oxygen species protection were found within its genome, supporting the evidence from our FeOB abundance data; they may represent adaptations of FeOB for colonization of surfaces of anthropogenic iron sources such as stainless steel. These results reveal environmental conditions under which FeOB colonize steel surfaces most abundantly, and they provide the framework needed to develop biocorrosion prevention strategies for stainless steel infrastructure in coastal estuarine areas.IMPORTANCE Colonization of FeOB on corrosion-resistant stainless steel types (304SS and 316SS) has been quantified from environmental deployments along salinity gradients in estuarine environments. Greater FeOB abundance at higher salinities and on the more-corrosion-resistant 316SS suggests that there may be a higher risk of biocorrosion at higher salinities and there may be a selective advantage from certain stainless steel alloy metals, such as molybdenum, for FeOB colonization. A novel species of FeOB described here was isolated from our stainless steel coupon deployments, and its genome sequence supports our environmental data, as genes involved in the potential selectiveness toward surface colonization of stainless steel might lead to higher rates of biocorrosion of manmade aquatic infrastructure. These combined results provide environmental constraints for FeOB colonization on anthropogenic iron sources and build on previous frameworks for biocorrosion prevention strategies.

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Data on environmental sustainable corrosion inhibitor for stainless steel in aggressive environment.

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Data on environmental sustainable corrosion inhibitor for stainless steel in aggressive environment.

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