Synthesize of Sodium Silicate from Coconut Fiber for The Manufacture of Anti-Corrosion

Muhammad Zuhairy Fahriansyah(1*), Fajar Ismail Rhomadon(2), M. Sulthon Nurharmansyah Putra(3), Tedi Kurniadi(4),

(1) Chemistry Department, Faculty of Mathematics and Military Sciences, Republic of Indonesia Defense University
(2) Chemistry Department, Faculty of Mathematics and Military Sciences, Republic of Indonesia Defense University
(3) Chemistry Department, Faculty of Mathematics and Military Sciences, Republic of Indonesia Defense University
(4) Chemistry Department, Faculty of Mathematics and Military Sciences, Republic of Indonesia Defense University
(*) Corresponding Author

Abstract


Indonesia is second ranks after Brazil in terrestrial biodiversity globally. When combined with its rich marine biodiversity, Indonesia possesses the highest overall biodiversity in the world. This study aimed to synthesize sodium silicate (Na₂SiO₃) from coconut fiber and evaluate its characteristics as an anti-corrosion material. Coconut fiber, which has a high silica (SiO₂) content, was used as the primary raw material. The synthesis process involved two main stages: silica isolation from coconut fiber and the reaction of silica with sodium hydroxide (NaOH) to produce sodium silicate. The experimental results showed that the synthesized sodium silicate had a bluish-white color with a yield of 10.625%. The compound exhibited a pH of 13, was soluble in water, and insoluble in alcohol. The synthesized sodium silicate has potential applications as an anti-corrosion material in various industries, particularly for protecting metal structures in the defense sector.

Keywords


Coconut fiber; Sodium silicate; Anti-corrosion

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