Daniel Pradipta Juniardi
ABSTRACT
Alloy and iron are examples of metals that commonly used as building materials and industrial purposes. Although they are strong materials, they are extremely corrosion prone. One of the methods for shielding metals from oxidation is the use of inhibitors. Although the synthetic corrosion inhibitors are highly efficient, due to their costs and dangerous environmental impacts, they cannot always be used for corrosion inhibition purposes. Therefore, in recent years, researchers based their works on green inhibitors of corrosion. This work was focused on the potential utilization of water hyacinth (WH) as a green corrosion inhibitor. The result of this work shows that the highest inhibition efficiency of WH extract is 65.3% in tap water and 47.1% in sodium chloride solution, when applied to SS400 metal. However, with the addition of an appropriate dose of gum Arabic (GA), the inhibition efficiency can be increased significantly. The highest inhibition efficiency of the WH and GA mixture is 71.08% in hydrochloric acid 32% solution after 3 days of immersion and 79.75% in sodium chloride 3.5% after 4 days of immersion.
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Index Terms
- Study on The Potential Application of Water Hyacinth as An Organic Corrosion Inhibitor
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