Description:
Liquid oxygen must be handledwith all the precaution required for safety with any cryogenic fluid. GaseousOxygen is authorized for shipment in cylinders, tank, and car and tubetrailers. Liquid Oxygen is shipped as a cryogenic fluid in insulated cylinders,insulated tank trucks and insulated tank cars. Gaseous Nitrogen is non-corrosive and inert and may consequently contained in system constructed of anycommon metals and designed to withstand safely the pressure involved. At thetemperature of liquid nitrogen, ordinary carbon steels and most alloy steelslose their ductility and are considered unsatisfactory for liquid nitrogenservice.
Uses and Applications
Applications of Oxygen include:It is used extensively in medicine for therapeutic purposes, for suscitation inasphyxia and with other gases in anaesthesia. It is also used in high altitudeflying, deep sea diving, and as both an inhalant and power source in U.S apacesprogram. Industrial applications include its very wide utilization withacetylene, hydrogen and other fuel gases for such purposes as metal cutting,welding, hardening, scaring, cleaning and dehydrating. Oxygen helps increasethe capacity of steel and iron furnaces on growing scale in the steelindustry. One of its major uses is in the production ofsynthesis gas from coal, natural gas or liquid fuel. Synthesis gas is in turnuse to make gasoline, methanol and ammonia. Oxygen is similarly employed inmanufacturing some acetylene through partial oxidation of the hydrocarbons inmethane. It is also used in the production of nitric acid, ethylene and othercompounds in the chemical industry. Applications of Nitrogen include: Agitationof colour film solution in photographic processing, blanketing of oxygensensitive liquids, and of volatile liquid chemicals, The deaeration ofoxygen sensitive liquids, The degassing of non ferrous metals, It is used infood processing and packing, Inhibition of aerobic bacteria growth, Magnesiumreduction of aluminium scrap, Pressurization of air craft tires and emergencybottles to open landing gear, Purging and filling of electronic devices, Thepurging and fillings of pipelines and related instruments and the treatment ofalkyd resins in the paint industry etc.
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