Abstract
Salts were synthesized by acid extracted from sunflower oil and studied their inhibitory properties of carbon steel in 1% solution of NaCl saturated with CO2 at 50 degrees C. The inhibition efficiency of the studied salts was calculated by the polarization method. The surface activity of the synthesized salts was determined using surface and interfacial tension measurements at 25 degrees C. Thermodynamic adsorption parameters of studied inhibitors were calculated using the Langmuir adsorption isotherm. It is found that, the maximum inhibition efficiencies ranged between 98.25 % and 99.60 % at 100 ppm