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Noble Gases

Noble Gases Struktur
CAS-Nr.
Englisch Name:
Noble Gases
Synonyma:
Noble Gases
CBNumber:
CB41394601
Summenformel:
Molgewicht:
0
MOL-Datei:
Mol file

Noble Gases Eigenschaften

Sicherheit

Noble Gases Chemische Eigenschaften,Einsatz,Produktion Methoden

l?uterung methode

Of these gases, argon is an unexcelled protective gas for highly sensitive substances. Helium and neon are equally effective and are also used occasionally. These gases are stored in steel cylinders and can be freed of the usual impurities (H2O, O2, CO2) by the methods customarily used for other gases (e.g., Na). A simple and very effective method for the removal of moisture and O2 from inert gases and from N2 or H2 is given by Harrison . In this method the gas is passed through a U tube (e.g., 40 cm. high, 2.5 cm. in diameter) partly filled with liquid Na-K (25% Na, 75% K). In addition, the problem of the removal of small amounts of N2 from the inert gases, particularly from Ar, requires special consideration here. The N2 may be combined with metallic Ca, Mg, Ti or Zr; metallic U is also very useful.

Noble Gases Upstream-Materialien And Downstream Produkte

Upstream-Materialien

Downstream Produkte


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