Effect of an Organic Inhibitor on the Electrical Properties of High Carbon Steel in Simulated Acid Environment

Osarolube Eziaku

Department of Physics, University of Port Harcourt, Port Harcourt, Nigeria.

DOI: 10.4236/msce.2014.27003                

Abstract

The effect of 1-Phenyl-3-Methyl Pyrazol-5-one (HPMP) on the electrical properties of high carbon steel in Hydrochloric acid (HCI), Trioxonitrate (v) acid (HNO₃) and Perchloric acid (HCIO₄) was studied by weight loss method. The acidic medium caused a complete degradation of the electrical properties of the coated and uncoated high carbon steel. However, the attack was more on the uncoated coupons, which showed that HPHP is an effective corrosion inhibitor. HNO₃ had the most severe effect on the metal. The coupons coated with HPMP generally had higher values of resistance (0.0155 Ω) and conductivity (6.20 mho/m) in HCI environment than the uncoated coupons (0.0043 Ω) and (1.72 mho/m). Similar results were obtained for HNO₃ and HCIO₄ environments. These values are lower than the values obtained for as-received coupons: -0.0466 and 8.64 mho/m respectively.

Keywords

Electrical Properties, Corrosion, High Carbon Steel, 1-Phenyl-3-Methyl Pyrazol-5-One

Conflicts of Interest

The authors declare no conflicts of interest.

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