Obtaining Krypton

Krypton is obtained by allowing water, argon, oxygen, helium and nitrogen to evaporate from liquid air. It makes up around 0.0001% of the Earth's atmosphere, and is found in trace amounts in the Earth's crust. The atmosphere of Mars has also been found to contain krypton. Krypton is always found in a gaseous form, and can be found in nature inside volcanoes, geysers and hot springs.