Krypton is present in the air at about 1 ppm. The atmosphere of Mars contains a little (about 0.3 ppm) of krypton. It is characterised by its brilliant green and orange spectral lines.
Under normal conditions krypton is colourless, odourless, fairly expensive gas. Solid krypton is a white crystalline substance with a face-centered cubic structure which is common to all the "rare gases". Krypton difluoride, KrF2.
Krypton is present to a small extent (about 1 ppm by volume) in the atmosphere and is obtained as a byproduct from the liquefaction and separation of air. This would not normally be carried out in the laboratory and krypton is available commercially in cylinder.
| Product | Denomination | Standard articles | Impurities, no more | Total impurities, no more | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Krypton | Kr 5.0 UHP | Kr | ≥ | 99.999 | vol.% | Xe | ≤ | 3 | ppm | ≤ | 10 | ppm |
| - | N2 | ≤ | 3 | ppm | - | - | - | |||||
| - | Ar | ≤ | 1 | ppm | - | - | - | |||||
| - | H2 | ≤ | 0.1 | ppm | - | - | - | |||||
| - | O2 | ≤ | 1 | ppm | - | - | - | |||||
| - | CF | ≤ | 0.1 | ppm | - | - | - | |||||
| - | THC | ≤ | 0.5 | ppm | - | - | - | |||||
| - | CO | ≤ | 0.5 | ppm | - | - | - | |||||
| - | CO2 | - | - | - | - | - | - | |||||
| - | H2O | ≤ | 1 | ppm | - | - | - | |||||
| Krypton | Kr 5.5 UHP | Kr | ≥ | 99.9995 | vol.% | Xe | ≤ | 1 | ppm | ≤ | 5 | ppm |
| - | N2 | ≤ | 1 | ppm | - | - | - | |||||
| - | Ar | ≤ | 1 | ppm | - | - | - | |||||
| - | H2 | ≤ | 0.1 | ppm | - | - | - | |||||
| - | O2 | ≤ | 0.3 | ppm | - | - | - | |||||
| - | CF | ≤ | 0.1 | ppm | - | - | - | |||||
| - | THC | ≤ | 0.1 | ppm | - | - | - | |||||
| - | CO | ≤ | 0.1 | ppm | - | - | - | |||||
| - | CO2 | ≤ | 0.1 | ppm | - | - | - | |||||
| - | H2O | ≤ | 0.5 | ppm | - | - | - | |||||
| Krypton | Kr 6.0 RG | Kr | ≥ | 99.9999 | vol.% | Xe | ≤ | 0.3 | ppm | - | - | - |
| - | N2 | ≤ | 0.1 | ppm | - | - | - | |||||
| - | Ar | ≤ | 0.1 | ppm | - | - | - | |||||
| - | H2 | ≤ | 0.1 | ppm | - | - | - | |||||
| - | O2 | ≤ | 0.1 | ppm | - | - | - | |||||
| - | CF | ≤ | 0.1 | ppm | - | - | - | |||||
| - | THC | ≤ | 0.1 | ppm | - | - | - | |||||
| - | CO | ≤ | 0.1 | ppm | - | - | - | |||||
| - | CO2 | ≤ | 0.1 | ppm | - | - | - | |||||
| - | H2O | ≤ | 0.1 | ppm | - | - | - | |||||
Procured from eminent manufacturers and retailers, our premium quality products comprise of Cylinders and Gases, Cryocans, Cylinder trolleys, Gas regulators, Portable gas canisters, Gas handling equipment, Gas monitoring systems and UHP grade specialty gases.
