Argon, Compressed Gas

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Argon (Ar, LAR), although comprising less than one percent of the atmosphere, is an important industrial gas. One of its unique properties is its absolute inertness. Argon is colourless, odorless, tasteless and nontoxic.

Argon plays an increasing role as welding technologies expand. It is the shielding gas of choice for many electric arc welding applications, either pure or more commonly in mixtures with helium, carbon dioxide and oxygen.