It is not recommended to use iron cans to store liquid nitrogen. Although iron is a very durable metal material, liquid nitrogen is a gas with ultra-low temperature and high compressibility, and its storage conditions are very special. If liquid nitrogen is stored in a tin can, there may be the following problems:

Liquid nitrogen tank

1. Liquid nitrogen will penetrate the sealing material of iron cans, leading to leakage. This is because at the low temperature of liquid nitrogen, many traditional sealing materials will become very fragile and easily penetrated by liquid nitrogen.

2. Liquid nitrogen will have a strong corrosion reaction on iron cans. Because of its active chemical properties, liquid nitrogen reacts with iron to produce ferrous and nitrogen, which leads to the gradual corrosion of iron cans.

3. Liquid nitrogen will produce great pressure in the tin can. Because liquid nitrogen has strong compressibility, if the storage tank is not strong enough, liquid nitrogen will produce great pressure, which will eventually lead to the rupture of the storage tank.