Abstract
The inhibitive effects of aliphatic carboxylic acids on steel corrosion in the liquid and vapor phases of carbonate media were studied. It was shown that the acids become more effective with an increase in their hydrophobicity and can inhibit both the cathodic and anodic processes on steel because of their high adsorbabilities. Lauric acid was found to be the most effective inhibitor of carbon dioxide corrosion among the carboxylic acids studied. Although its molecule includes a relatively long alkyl fragment (C11H23), this acid is rather volatile and can be used as VCI. Caprylic acid in a concentration of 3.7 mmol/l inhibits steel dissolution in the temperature range from 30 to 100°C and increases the apparent energy of corrosion activation.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
