Pakistan Oxygen Limited (POL) offers a wide array of industrial and medical gases to support the full requirement of industry.
The most common source of argon is the Air Separation Units (ASU). Air contains approximately 0.93% (vol) argon. A crude argon stream containing up to 5% oxygen is removed from the main air separation column via a secondary side arm column. The crude argon is then further purified to produce the various commercial grades required. Argon may also be recovered from the exhaust streams of certain ammonia plants.
In higher concentrations, Nitrogen is an asphyxiant gas. It is essentially colorless, odorless, non-reactive and inert in nature.
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• Argon is used as an insulation gas in high-efficiency multi-pane windows to improve thermal insulation.
• Argon is the most widely recognized carrier gases in gas chromatography. Argon is utilized as a lifelong gas in sputtering, plasma scratching and particle implantations and as a sweeping air in gem development.
• Argon is also the choice gas for ICP spectroscopy (inductively coupled plasma spectroscopy) and for atomic absorption spectrometry as a blanket gas in the graphite furnace.
• One of the most well-known utilization of argon, either unadulterated or in different blends, is as a protecting gas for arc welding. Numerous Geiger-checking tubes contain argon or argon blended with other gases, for instance 10% methane in argon.
• Argon is one of the principal gases used for filling incandescent (filament) lamps.
• The argon-oxygen decarburizing (AOD) process is the most common method of refining stainless steel and uses large quantities of both gases supplied either in liquid from or via pipeline from an on-site plant.
• Other uses of argon include prevention of oxidation of molten metals and alloys and for degassing and desulphurization of molten steel and iron baths, in the iron and steel industry.
• The pharmaceutical industry utilizes argon to remove oxygen in the intravenous medication.
• Argon is utilized, frequently in a blend with hydrogen, as a defensive air for the warmth treatment of specific metals, especially those which are powerless to nitriding when treated in a nitrogen-based environment. This incorporates hardened steels and a wide range of specific small-scale applications.
• Argon is also used for wine preservation to eliminate air.
• Liquid argon is used in cryosurgery e.g., cryoablation to destroy cancer cells.
• Argon is utilized, regularly in blend with nitrogen and carbon dioxide, as a perfect fire quenching gas, which does not harm the materials it extinguishes.
• Argon is used in laboratory as purge gas or balance gas in gas mixtures.