The inhibition of the corrosion for Tin was studied in 0.1N hydrochloric acid, sulfuric acid and nitric acid solution. The efficiency to resist corrosion of pyridine on tin substrate was compared using weight loss and electrochemical potentiostatic polarization methods. The experiments were carried out in 0.1N hydrochloric acid, sulfuric acid and nitric acid solution in the absence and presence of inhibitor. As the concentration of pyridine was increased, the corrosion rate has decreased because Tin has increased the corrosion resistance. After the protective film was destructed, the corrosion rate was slower than the absence of pyridine acid solution; pyridine exhibited better performance as a corrosion inhibitor for Tin in hydrochloric acid solution.
By
Phanuwatana Wareewanich
Somchai Banmai
Somboonrana Narawaranunta
