Oxygen is the chemical element with the symbol O and atomic number 8. It is a member of the chalcogen group in the periodic table, a highly reactive nonmetal, and an oxidizing agent that readily forms oxides with most elements as well as with other compounds. Small Oxygen Cylinder Price in Bangladesh After hydrogen and helium, oxygen is the third-most abundant element in the universe by mass. At standard temperature and pressure, two atoms of the element bind to form dioxygen, a colorless and odorless diatomic gas with the formula O 2. Diatomic oxygen gas constitutes 20.95% of the Earth’s atmosphere.
Oxygen makes up almost half of the Earth’s crust in the form of oxides. Small Oxygen Cylinder Price in Bangladesh Dioxygen provides the energy released in combustion and aerobic cellular respiration, and many major classes of organic molecules in living organisms contain oxygen atoms, such as proteins, nucleic acids, carbohydrates, and fats, as do the major constituent inorganic compounds of animal shells, teeth, and bone. Most of the mass of living organisms is oxygen as a component of water, the major constituent of lifeforms. Oxygen is continuously replenished in Earth’s atmosphere by photosynthesis, which uses the energy of sunlight to produce oxygen from water and carbon dioxide.
Oxygen is too chemically reactive to stay a free component in air while not being ceaselessly replenished by the photosynthetic action of living organisms. Another kind (allotrope) of oxygen, gas (O 3), powerfully absorbs ultraviolet UVB radiation and therefore the high-altitude ozonosphere helps defend the region from ultraviolet radiation. Small Oxygen Cylinder Price in Bangladesh However, ozone gift at the surface could be a byproduct of smogginess and so a pollutant. gas was isolated by Michael Sendivogius before 1604, however it’s ordinarily believed that the element was discovered severally by Carl Wilhelm Scheele, in Uppsala, in 1773 or earlier, and Priestley in Wiltshire, in 1774.
Priority is commonly given for Priestley because his work was published first. Priestley, however, called oxygen “dephlogisticated air”, and did not recognize it as a chemical element. Small Oxygen Cylinder Price in Bangladesh The name oxygen was coined in 1777 by Antoine Lavoisier, who first recognized oxygen as a chemical element and correctly characterized the role it plays in combustion. Common uses of oxygen include production of steel, plastics and textiles, brazing, welding and cutting of steels and other metals, rocket propellant, oxygen therapy, and life support systems in aircraft, submarines, spaceflight and diving.
Oxygen tanks are used to store gas for: medical breathing at medical facilities and at home breathing at altitude in aviation, either in a decompression emergency, or constantly (as in unpressurized aircraft) oxygen first aid kits oxygen therapy gas blending, for creating diving breathing mixes such as nitrox, trimix and heliox open-circuit scuba sets – mainly used for accelerated decompression in technical diving some types of diving rebreather: oxygen rebreathers and fully closed circuit rebreathers use in climbing, “Bottled oxygen” refers to oxygen tanks for mountaineering industrial processes, including the manufacture of steel and monel oxyacetylene fastening equipment, glass lampworking torches, and a few gas cutting torches use as liquid rocket propellants for rocket engines athletes, specifically on American football game sidelines, to expedite recovery once exertion.
little chemical element Cylinder worth in Asian nation respiratory gas is delivered from the tank to users by use of the subsequent methods: oxygen mask, nasal cannula, full face diving mask, diving helmet, demand valve, oxygen rebreather, in-built respiratory system (BIBS), oxygen tent, and hyperbaric oxygen chamber. Contrary to widespread belief Aqua-Lung different terribly seldom carry oxygen tanks. The overwhelming majority of diverse breathe air or nitrox keep in a very diving cylinder. alittle minority breathe trimix, heliox or alternative exotic gases. a range of these might carry pure oxygen for accelerated decompression or as a element of a rebreather.
Some shallow divers, notably armed service divers, use oxygen rebreathers or have done therefore historically. little chemical element Cylinder worth in Bangladesh, chemical element isn’t control at pressures above two hundred bars (3,000 psi), because of the risks of fireside triggered by high temperatures caused by adiabatic heating once the gas changes pressure when moving from one vessel to another. Medical use O airgas tanks are generally 350 psi (24 bar). All equipment coming into contact with high pressure oxygen must be “oxygen clean” and “oxygen compatible”, to reduce the risk of fire.
“Oxygen clean” means the removal of any substance that could act as a source of ignition. “Oxygen compatible” means that internal components must not burn readily or degrade easily in a high pressure oxygen environment. In some countries there are legal and insurance requirements and restrictions on the use, storage and transport of pure oxygen. Oxygen tanks are normally stored in well-ventilated locations, far from potential sources of fire and concentrations of people. Small Oxygen Cylinder Price in Bangladesh