Using of tea extract as an inhibitor for steel corrosion in 10%HCl solution

Abstract EN

A study of steel corrosion in 10%HCl solution under various temperature values with and without inhibitor was done. As a result of the modern science trends to use cheap, safe inhibitors as well as with a minor risks on human being life, therefore, a black tea extract solution or what is named in Iraq as a tea was used as a natural inhibitor. The anodic and cathodic polarization curves in the specified solutions demonstrated that a good inhibition efficiency was obtained and increased by increasing the inhibitor quantity and the inhibition to approach about 70% at the highest quantity used.

The inhibition mechanism did not affect the hydrogen evolution kinetic in this media but was according to a film formation that isolate the metal from the HCl solution.