Krypton

Chemical formula: Kr

CAS login No.: 7439-90-9

Appearance: colorless and odorless gas

Molecular weight: 83

Purity: 99.999%

Package: 40L

Gas content: 5M3

Gas description

Krypton element symbol Kr, atomic number 36, atomic weight 83.80, peripheral electron arrangement 4s24p6, located in group 0 of the sixth cycle. Simple substance is composed of monatomic molecules. It is a rare gas. It is colorless, odorless and tasteless. Density 3.733 g/l, melting point -156.6 ℃, boiling point -153.3 ± 0.1 ℃. The atomic van der Waals radius is 198 Pico meters, and the first ionization energy is 1351kj/mol. It can dissolve 23 ml per liter of water at 20 ℃. The chemical property is extremely inactive. The compound krypton fluoride krf2 which is stable at -80 ℃ has been prepared. Used for filling electric bulbs and electronic devices. It can absorb X-rays and is used as a shading material for X-ray operation

Main uses of the product

1. some are used in filling incandescent bulbs. Krypton is also used for the lighting of airport runways.

2. it is widely used in electronic and electric light source industries, as well as gas lasers and plasma streams.

3. because of its high transmittance, it is widely used as miner's lamp and off-road vehicle headlamp.

4. in medicine, the isotope of krypton is used as a tracer.

5. liquid krypton can be used as bubble chamber to detect particle trajectory.

6. radioactive krypton can be used for leak detection of closed containers and continuous measurement of material thickness. It can also be made into an atomic lamp without electric energy.