Characteristics of argon:

1, Ar is Argon, a monatomic gas, is one of the inert gases.

2. Argon is a single elemental gas, colorless and tasteless.

3, the distillation fraction containing argon is extracted from the air fractionation column, and then the coarse argon is separated by argon column, and then the pure argon is separated by chemical and physical adsorption technology.

Argon was initially used to fill the bulb. At the same time, a large amount of argon gas is needed for welding and cutting. Protective gas for welding stainless steel, magnesium, aluminum and other alloys.

Characteristics of helium:

Helium is the lightest element except hydrogen. It weighs only one-seventh as much as an equivalent volume of air. Since hydrogen does not burn like hydrogen, it is quite safe. So, in the air bags of balloons and spacecraft, helium is used instead of hydrogen. A helium-filled floc can rise and fall about 93 percent as much as a comparable craft filled with hydrogen. In recent years, helium has also been mixed with plastics, rayon, and synthetic fibers to form very light styrofoam, foam fibers.