Applications of Argon

Although the noble gas argon is mainly used for its low reactivity (as is the case with nitrogen), it can provide higher inertness than nitrogen as well as lower thermal conductivity and improved solubility in water and oils. 

Argon is more common and cost-effective than the noble gases helium, neon, krypton and xenon. 

In the processing industry, welding and engineering, argon is used to  

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The interactions of these probes with the active sites are often realised through dispersion forces. Applied as probes, these kinds of molecules enable the recognition and titration of very weak active sites. Being on the level of dispersion forces, the interactions of inert gases with the active sites can be considered as specific, in some cases. In Fig. 4.10, the application of argon as probe gas is shown. 

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