Why does iron nail is exposed to nitrogen not rust?

Answer 1

the corrosion agents for iron are moisture and oxygen. Boiling the water removes all of the dissolved gases, including oxygen. The absence of oxygen in the water is maintained by the layer of oil. That prevents the iron from rusting.

Answer 2

Nails are made of steel which contains iron. What I am about to say goes for anything made of steel, not just nails.

When steel is produced in a steel mill, iron ore (rust) is converted into pure iron which is then alloyed with other elements (molybdenum, silicon, manganese, chromium, etc) to produce steel. Iron is the largest component in steel.

Iron is not stable from a thermodynamic perspective and it trys to revert back to its most stable form, iron oxide (rust). To prevent something from rusting, you must seek to interfere with the chemical oxidation of iron. For example, paint and other coatings block the action of moisture and oxygen on steel and thus rust is stopped.

Answer 3

Rust is Iron Oxide (Fe2o3). As there is oxygen in the air I would say that over time it will just oxidise and create rust. Ways of preventing rust would be to coat the iron in something, like painting it which will stop the oxygen getting to the iron to oxidise it.

Answer 4

because the minerals that caws things to rust are heated and change

Answer 5

Rust is caused by the oxidation of the metal in question, caused by contact with water. Rust can easily occur if the air is humid enough.

Answer 6

It rust as it comes into contact with oxygen and water.

This can be prevented by adding a layer of protection around the iron, such as paint or you can also use sacrificial protection.

Answer 7

Because nitrogen doesn't react with iron at room temperature and is not an oxidant.