Phoenix Gases

Krypton

Description

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.

Application

It used with argon as a low-pressure filling gas for fluorescent lights.It used in some photographic flash lamps for high-speed photography, lamps, UV-laser spectral line used for international measurement of a meter.

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 < 1 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