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@article{Emmanuel_Buchweishaija_2021, title={Temperature Effects on the Corrosion Inhibition of Mild Steel in Sulfuric Acid Solution by Acacia senegal Gum with Halide Ions}, volume={47}, url={https://tjs.udsm.ac.tz/index.php/tjs/article/view/867}, DOI={10.4314/tjs.v47i5.9}, abstractNote={<p>The effects of temperature on the inhibitive effect of naturally occurring <em>Acacia senegal</em> gum exudate on the corrosion of mild steel in sulfuric acid was studied between 35 and 70 °C using electrochemical impedance spectroscopy and potentiodynamic polarization methods. Findings showed that <em>Acacia senegal</em> gum exudate decreases the corrosion rate of mild steel. The inhibition efficiency declined with raising temperature above 35 °C. The increase in the corrosion rate with increasing temperature was observed for both uninhibited and inhibited systems. Addition of halide ions to the <em>Acacia senegal</em> gum exudate solution enhanced the corrosion inhibition efficiency because of synergistic effects, achieving higher performance with iodide ions as compared to bromide ions. However, the synergistic effects declined above 35 °C up to 70 °C due to temperature effects. It has been observed that increasing temperature adversely affected inhibition efficiencies of both <em>Acacia senegal</em> gum exudate and the synergy between <em>Acacia senegal</em> gum exudate and halide ions. Corrosion rates of mild steel, inhibition efficiencies of <em>Acacia senegal</em> gum exudate and the synergistic effects of halide ions from polarization and impedance measurements were consistent.</p> <p><strong>Keywords</strong>: temperature, corrosion, mild steel, synergistic effects, <em>Acacia senegal</em>, gum exudate.</p>}, number={5}, journal={Tanzania Journal of Science}, author={Emmanuel, Jovine and Buchweishaija, Joseph}, year={2021}, month={Dec.}, pages={1588–1595} }