1. Liquid nitrogen

Liquid nitrogen is one of the commonly used gases for creating low temperature drying environments. It has a boiling point of -196℃ and is a commonly used high-efficiency low temperature coolant. In the pharmaceutical industry, liquid nitrogen is widely used to manufacture high-purity pharmaceutical products. The low temperature of liquid nitrogen quickly reduces the moisture content, prevents the solidification of cells, and plays a role in preservation.

2. Liquid argon

Liquid argon is a colorless and odorless gas with good defect capture performance at low temperatures. It is one of the important gases for creating low temperature drying environments. The boiling point of liquid argon is -195.8℃, and it has high pressure, which can quickly reduce the temperature of the dried items and make them dehydrated quickly. In the fields of food, chemistry, medicine, etc., liquid argon is often used to make desiccants.

3. Liquid hydrogen

Liquid hydrogen is another commonly used gas for creating low temperature drying environments. The boiling point of liquid hydrogen is -252.87℃, which is a very low temperature. Because the temperature of liquid hydrogen is quite low, it can quickly evaporate and absorb the moisture inside the object. In the fields of electronics, materials, etc., liquid hydrogen is often used for high temperature drying and temperature control.

4. CO2

CO2 is a commonly used low-temperature drying medium. During the drying process, it can quickly reduce the temperature and accelerate the evaporation of water. CO2 is widely used in the manufacture of desiccants, food, medicines and other fields.

In summary, the gases commonly used to create a low-temperature drying environment include liquid nitrogen, liquid argon, liquid hydrogen, CO2. etc. The specific gas used depends on the characteristics of the dried items and the purpose of drying.