essential oil of sage green tin inhibitor in hydrochloric

摘要

in this patent, we focused our work on the study of the mechanism of action of plant oil on corrosion of tinplate in hydrochloric hci effective to this end, we have studied by electrochemical measurements, quasi steady and transient, the effect as the concentration and the temperature on the inhibitory efficacy of the oil.the surface morphology was observed by scanning electron microscopy (sem).the results at the end of this work are: - the majority of the oil compounds from artemisia "artemisia alba in the agadir region is known for its medicinal properties and aromatic camphor (45%), - thujone (32.2%), the b - thujone (9%), the camphene (8.3%), and the cineole (1.8 6.2%).the values of the corrosion current density by a monotonic decrease as the concentration of artemisia is solution. - an analysis of the values of e% shows that the inhibitory potency increased with the content of sand in the solution. the value of e% exceeds 80% in a concentration of 0.5 g / l.the inhibitory efficiency reached a maximum value at a concentration of 0.5 g / ld but at a temperature of 35c. this inhibitory efficacy was confirmed by the three methods.