Which is easy to rust, pig iron or pure iron?And liquid ammonia
Pure iron is easily passivated with oxygen, so it is not easy to rustThe answer is pig iron
Pig iron, containing impurities, easy to form a galvanic cell
The outer layer of pure iron is oxidized to form an oxide film that prevents internal oxidationPig iron contains carbon and other impurities, itself constitutes a galvanic cell, very easy to rustYou see that people use the charcoal iron stove will know.Therefore, pig iron is easy to rust
