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.
Highlights
Steel is one of the most important construction metals in the world
This paper reports the effect of 1-Phenyl-3-Methyl Pyrazol-5-one (HPMP) on the electrical properties of high carbon steel in various concentrations of Hydrochloric acid (HCI), HNO3 and HCIO4
The three categories of coupons, namely: The as-received, coated and uncoated coupons, were all subjected to the current voltage measurement before and after the weight loss experiment
Summary
Steel is one of the most important construction metals in the world While this is common knowledge, many people do not understand the difference between high carbon steel and other types of steel. (2014) Effect of an Organic Inhibitor on the Electrical Properties of High Carbon Steel in Simulated Acid Environment. The failure of steel equipment due to acid corrosion in industries is widely reported, and the use of chemical inhibitors for steel corrosion has been established to be the most practical and cost effective means of controlling corrosion [2]-[4]. Electrical properties of metals are usually affected when corrosion occurs. This paper reports the effect of 1-Phenyl-3-Methyl Pyrazol-5-one (HPMP) on the electrical properties of high carbon steel in various concentrations of HCI, HNO3 and HCIO4
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