There are gases in the atmosphere that are so small and so inactive that they are difficult to react with other substances to form compounds. They are called noble gases and they are also called noble gases. Next we are going to introduce argon (Ar), the least rare of the noble gases.

Argon is colorless, odorless and does not burn itself, nor does it aid combustion. It is second only to nitrogen and oxygen in the atmosphere, and is higher than carbon dioxide.

Argon gas is widely used in steel making

Argon is widely used in our daily life. Due to its inactive chemical properties and poor thermal conductivity, one of its most widely used applications is as a filling gas in lighting technology. Fill the bulb with argon to extend the life of the filament. In addition, argon gives off a blue-violet glow when it is electrified, so argon is often filled with other gases that give off color, and used to make neon lights. In addition to the lamps, some of the window glasses are filled with argon. In some buildings, insulating glass is inserted between the Windows with a well-insulated gas barrier filled with argon, which isolates some of the heat from the outside, greatly reducing the heat conduction efficiency of the Windows. This method is now widely used in the manufacture of insulating layer materials for high-grade insulating glass.

Argon is widely used in daily life （Part 2）