Corrosion Reaction Kinetics of Rusty Iron in HCl, H₂SO₄, and NaOH: Determination of Reaction Order and Dissolution Rate

Authors

  • Dian Wardana Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Negeri Medan, Medan 20221, Indonesia
  • Andhika Febrian Pulungan Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Negeri Medan, Medan 20221, Indonesia
  • Meisya Hasiana Pasaribu Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Negeri Medan, Medan 20221, Indonesia
  • Syakira Azmi Aurellia Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Negeri Medan, Medan 20221, Indonesia
  • Dilla Rama Dina Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Negeri Medan, Medan 20221, Indonesia
  • Ike Wijaya Sinaga Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Negeri Medan, Medan 20221, Indonesia
  • Bella Junita Sari Br. Tamba Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Negeri Medan, Medan 20221, Indonesia
  • Ahmad Nasir Pulungan Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Negeri Medan, Medan 20221, Indonesia
  • Moondra Zubir Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Negeri Medan, Medan 20221, Indonesia
  • Dwi Sapri Ramadhan Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Negeri Medan, Medan 20221, Indonesia
  • Jam’an Fahmi Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Negeri Medan, Medan 20221, Indonesia
  • Wulan Dwi Safitri Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Negeri Medan, Medan 20221, Indonesia

DOI:

https://doi.org/10.24114/ijcst.v9i1.72427

Keywords:

corrosion kinetics, iron rust, dissolution rate, reaction order

Abstract

Corrosion is the degradation of metals resulting from chemical interactions with their surrounding environment, leading to significant impacts on industrial systems and infrastructure. This study investigates the corrosion kinetics of rusted iron in hydrochloric acid (HCl), sulfuric acid (H₂SO₄), and sodium hydroxide (NaOH) solutions by determining dissolution rates and reaction order. The corrosion behavior was evaluated using a mass loss method, in which the initial and final masses of rusted iron were measured after immersion in solutions of varying concentrations and exposure times. The results indicate that H₂SO₄ exhibits the highest dissolution rate, followed by HCl, while NaOH shows the lowest corrosion activity. Kinetic analysis reveals that the dissolution process follows first-order reaction kinetics. Furthermore, increasing acid concentration significantly accelerates the corrosion rate, whereas alkaline conditions result in comparatively slower iron dissolution.

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Published

2026-01-31

Issue

Vol. 9 No. 1 (2026): JANUARY 2026

Section

Articles