Effect of Chemical Conversion Treatment with Oxalic Acid Solution in the Corrosion Resistance of Galvanized Steel in Soybean Biodiesel with Natural Additives

In many applications, such as fuel storage tanks and lines, galvanized steel is used a construction material which comes into contact with biodiesel. Considering that biodiesel more corrosive than petroleum diesel, studies aim to increase the corrosion resistance of in this environment are required. The present work investigates how chemical conversion treatment oxalic acid solution affects soybean (B100) absence presence natural additives extract turmeric, clove, ginger, stone breaker, rosemary. results obtained indicate reduces rate zinc coating additives, condition effect depends on additive used.