Lead forms a dense lead oxide film on the surface of the air, a lead carbonate film in the humid air containing carbon dioxide, and a lead sulfate film in sulfuric acid, which play a good protective role. Therefore, lead has excellent corrosion resistance in many media, especially in sulfuric acid. The corrosion rate in the atmosphere of lead industrial area is 0.00043~0.00068mm/a; The corrosion rate in natural seawater is 0.01~0.015mm/a; When the concentration of sulfuric acid is as high as 70% - 80% and the temperature is 50 ℃, lead still has good corrosion resistance.

Lead is very stable in SO2, it hardly interacts with pure CO2, and the corrosion of ordinary water to lead is very slight. Lead is easy to dissolve in nitric acid, borofluoric acid, silicofluoric acid and acetic acid, but difficult to dissolve in sulfuric acid, hydrochloric acid and hydrofluoric acid at normal temperature. NH4OH solution or dilute NaOH solution with air can slowly dissolve lead. Lead can be dissolved in silver nitrate solution, and other nitrates and chlorides will corrode lead. Sulfates of potassium, sodium, iron, ammonia and potassium carbonate and cyanide solutions have no effect on lead.