Liquid – Argon

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Argon is a colorless, odorless, tasteless and nontoxic gas. Argon, along with helium, neon, krypton, xenon and radon is also known as a “rare” gas. Argon forms no known chemical compounds. The gas is 1.38 times heavier than air and is slightly soluble in water.

Argon is present in the atmosphere at a concentration of 0.93%. Argon is recovered from air in an Air Separation Unit (ASU) where it is drawn off as a cryogenic liquid at about -303°F. Argon can then be distributed as a cryogenic liquid or as a gas in cylinders.

Applications for argon often utilize its inert properties for protection against the oxidizing effect of air. Argon is widely used as a blanketing or shielding gas in metallurgy and arc welding and cutting. Argon is also used to fill incandescent and fluorescent lamps.

Safety Informations

Argon is an inert gas that causes oxygen depletion leading to asphyxiation and death. The danger is exacerbated by the fact that argon’s density is greater than air. This allows it to flow downwards and collect in low lying areas far from the point of leakage.

Argon is not consumed in any process and might therefore be present in high concentration in exhaust streams. Argon used in electric welding operations can fill the tanks and vessels being constructed and lead to asphyxiation hazards. In its liquid form argon represents a frostbite hazard.

Argon Specifications

Liquid Argon Minimum Purity – 99.999%
Conversion Data :

Units Weight in Kg Gas in Nm3 Liquid in Ltrs
1 Kg 1.0 0.5605 0.7176
1 Ton 907.2 506.6 652
1 Nm3 Gas 1.784 1.0 1.2802
1 Ltr Liquid 1.3936 0.7812 1.0