Suregada Multiflora Leaves Extract as a Green Corrosion Inhibitor

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Suregada Multiflora Leaves Extract as a Green Corrosion Inhibitor

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O knihe

Seminar paper from the year 2020 in the subject Geography / Earth Science - Physical Geography, Geomorphology, Environmental Studies, , language: English, abstract: In this work, Suregada multiflora leaves extract (SMLE) was studied as an environmentally friendly green corrosion inhibitor on iron metal in HCl solution by weight loss measurement. Metallic corrosion is one of the greatest problems in developed and developing countries due to unusual wastages of metallic instruments in the industrial sector. Metallic corrosion arises due to environmental effects. Corrosion is unfavourable as many direct and indirect costs arise due to the damages such as productivity losses, interruptions, breakdowns, environmental pollutions, and even some legal actions. The best method to reduce corrosion is the use of inhibitors.

A corrosion inhibitor represents the chemical compound that decreases the rate of corrosion of metallic substances when added to a gas or liquid phase. The inhibitors are mixed with solutions that are in direct contact with metal which prevents the anodic or cathodic reactions in an electrochemical cell that mitigates the corrosion. The plant extracts are biologically acceptable, eco-friendly, or green corrosion inhibitors which can respond in a proper way to mitigate the corrosion without damaging the eco-system of the environment. In the market, large numbers of inhibitors are available. Different organic and inorganic compounds are used for these purposes. But few of them are environmentally friendly.

Appropriate inhibitor selection is a very difficult task. Presently use of natural products like plant extracts is an emerging concept to make an eco-friendly planet. There are numerous studies where Plant-based corrosion inhibitors have been used. Recently green inhibitors attract the spotlight due to some of their advantages like they are eco-friendly, biodegradable, and nontoxic and does not contain any heavy metals. Plant extracts are found to be rich sources of phytochemicals which can be a good substitution for traditional toxic inhibitors. Leaves extract has been in the centre of interest of researchers due to its high content of phytochemicals compare to the other parts of the plants.