|Description||Oxygen, chemical formula O2, type the amount of 32.00, colorless
and odorless gas, oxygen most common elemental form. Melting point
-218.4 ℃, the boiling point of -183 ℃. Easily soluble in water, 1L
of about 30mL of dissolved oxygen. In about 21% oxygen in the air.
LOX is sky blue. Solid oxygen is blue crystals. At room temperature
is not very lively, with many substances are difficult to effect.
However, at high temperatures is very lively, direct combination
with a variety of elements, which is second only to fluorine
electronegative oxygen atoms related.|
|Usage||Smelting Process: Blowing in the steelmaking process with high
purity oxygen, carbon, and oxygen will phosphorus, sulfur, silicon,
etc. from the oxidation reaction, which not only reduces the carbon
content of the steel, but also help remove phosphorus, sulfur,
silicon and other impurities . And the heat generated during the
oxidation process is sufficient to maintain the desired temperature
of steel, and therefore, not only shorten the refining oxygen
blowing time and improving the quality of steel. When the blast
furnace to improve blast oxygen concentration can tar ratio and
increase production. In the non-ferrous metal smelting, the use of
oxygen enrichment can also shorten the refining time to increase
Chemical industry: in the production of ammonia, oxygen gas is
mainly used for oxide materials, in order to strengthen the
process, improve fertilizer production. As another example, high
temperature cracking of heavy oil, pulverized coal gasification and
Defense Industry: liquid oxygen oxidizer is the best of modern
rocket in supersonic aircraft also need oxygen as the oxidant,
combustible material after impregnation with a strong explosive
liquid oxygen, liquid oxygen can be made explosives.
Healthcare: supplied breathing: for hypoxia, hypoxia or oxygen-free
environment, such as: diving, climbing, high-altitude flight,
astronauts, medical rescue isochronous.
Other aspects: it itself as accelerant and acetylene, propane and
other flammable gases used in conjunction to achieve the effect of
welding and cutting metals industries, particularly machinery
enterprise is widely used as a cut is also very easy to use, is the
preferred A cutting method.
|Precautions||1, the excess oxygen will promote life aging.|
2. Inhalation: rapidly from the scene to fresh air. Maintain airway
patency. If not breathing, give artificial respiration immediately.
3, fire fighting methods: water cooling containers to keep prevent
heat explosion, sharp contribute to the fire. Quickly cut off the
gas supply, water spray protection officers off the gas source, and
then select the appropriate extinguishing agent fire causes.
|By Industry||Smelting process, the chemical industry, defense industry,
healthcare, metal processing and manufacturing|