Abstract
The article presents the assessment results of carbon steel corrosion rate in 15% hydrochloric acid (aqueous solution) in the presence of phospholipids at 60 °C. The corrosion intensity was estimated from the rate of weight loss; the intensity of electrochemical corrosion was determined from the value of the corrosion current density. Phospholipids were isolated from vegetable oil waste. Surfactants of various operating principles were used as samples for comparison and enhancing the additives efficiency. It was found that the use of phospholipids under experimental conditions made it possible to provide protective properties up to 86.5% for phospholipids individually and up to 95% in a 50:50 mixture with a cationic surfactant.
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