POTENTIAL OF BALSAM (Impatiens balsamina) ESSENTIAL OIL, AGAINST THE CORROSION OF CARBON STEEL IN 1.0 M HCl: ELECTROCHEMICAL AND QUANTUM CHEMICAL STUDY

Many methods are available to prevent or delay corrosion of metal materials, the use of inhibitors is one of the best techniques to ensure their protection in contact with aggressive media such as hydrochloric acid. Oil and plant extracts have become a source of inhibitors, guaranteeing high ecological efficiency at a cheaper price. These types of inhibitors do not contain heavy metals or toxic compounds and are biodegradable. This journal presents a synthesis of the majority of contributions published in the literature over the past decade on the use of oil and plant extracts as a corrosion inhibitor in hydrochloric acid. In order to determine the most active component of its constituents, which contributes most to corrosion inhibition, the oil extract from impatient Balsamina leaves was produced. The results showed a very good improvement in the resistance of CS in hydrochloric medium. The effect of certain parameters (concentration, temperature, and immersion time) on the inhibition efficiency of Balsam was studied. The results show that the addition of Balsam to the aggressive solution slows the corrosion process and that inhibitory efficiency increases with the inhibitor concentration.