Overview of Xenon

- Nov 23, 2017 -

Xenon property is not lively. Can be with water, hydroquinone, phenol and other forms of weak bonding, in heating or ultraviolet irradiation, discharge conditions, xenon can be directly combined with fluoride to produce XeF2, XeF4, XeF6 and other fluoride, XeF4 and XeF6 strong hydrolysis can be XeO6 or XeOF4. A strong white light can be emitted under the action of an electric field. Used for the production of high-pressure long arc xenon lamps (commonly known as artificial small sun), the production of ultraviolet-like high-voltage arc lamp, flash, neutron counter, X-ray counter, but also used as anesthetic, atomic reactor neutron absorber, filling the gate tube and the ionization chamber for the detection of cosmic rays. Xenon was discovered by spectroscopic analysis in 1898 when the British Ramsey and Travis the mixture of liquid krypton fractionation. Contains 9x10% (volume) in the air. Industrial use of fractionation liquid air extraction.

In the arc discharge, the energy of the electron and the elastic collision loss is inversely proportional to the atomic weight of the gas, so the xenon arc discharge is less and the luminous efficiency is high compared with other inert gases. At the same time, the ionization potential of xenon is lower, the voltage drop near the electrode is low, which can prolong the life of the electrode. Because of the characteristics of the xenon atom structure, the spectrum of long arc xenon lamp is very close to that of daylight, so the automobile lamp is filled with xenon than the other gas effect is good, this is the biggest characteristic of xenon lamp.

Xenon's "weight" in the inert gas ranked second, almost extinct in the Earth's atmosphere, evidence everywhere, but the reasons are difficult to determine. German geologists have published studies showing that argon and other rare gases are hidden in perovskite-like minerals, but most xenon does not dissolve and disappear into space. After the earth cools, argon and other inert gases begin to penetrate into the perovskite and fill the atmosphere. and xenon as a trace level dissolved in perovskite material, but also in the trace of the level of the atmosphere. Xenon is very small in the air, containing only 0.086 ml [1] of xenon per cubic metre of air. But French scientists are skeptical that the disappearance of the Earth's xenon can be truly solved when the disappearance of the Martian xenon is also explained.