The Potential of Sodium Silicate from Rice Husk as Corrosion Inhibitor on Mild Steel

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Atiek Rostika Noviyanti, Solihudin, Haryono, Yudha P. Budiman, Agus Solehudin, Muhamad Diki Permana

2024 Trends in Sciences Vol. 21 Issue 7 Article Cited by 4 SDG 17SDG 12 Quartile

Abstract

Study of sodium silicate from rice husks as coating material is reported. The extraction was conducted via precipitation method with sodium hydroxide, nitric acid and ethanol at pH 8. The resulting silica was tested as hydrophobic coating by coating it on a glass surface. Based on the value of the contact angle, silica has good hydrophobic properties. The highest hydrophobic properties were obtained from sample, which labeled as Si10A:Si5B with an average contact angle of 105.3 °. Investigation of the potential application of sodium silicate as an inhibitor of corrosion has been conducted by coating it on steel surfaces. The effect of the concentration of sodium silicate was conducted at 0, 10, 20 and 30 ppm and found that the morphology of steel coated with 20 ppm has the lowest corrosion rate with 81 % inhibition efficiency. © 2024, Walailak University. All rights reserved.

Affiliations

Department of Chemistry, Faculty Mathematics and Natural Sciences, Universitas Padjadjaran Sumedang, West Java, 45363, Indonesia; Department of Mechanical Engineering Education, Faculty of Technology and Vocational Education, Universitas Pendidikan Indonesia, West Java, 40154, Indonesia; Integrated Graduate School of Medicine, Engineering and Agricultural Sciences, University of Yamanashi, Kofu, 4008511, Japan; Center for Crystal Science and Technology, University of Yamanashi, Kofu, 4008511, Japan

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