High-purity oxygen information

What call high-purity oxygen? And purity to 99.999% above in no other impurities high-purity oxygen, is called oxygen to high-purity oxygen chemicals formula is: O2, of most commodities oxygen are manufactured by air separation. soon after air liquefaction by distillation purification. also can use all cryogenic distillation method. Little oxygen by electrolysis oxygen as raw material by the catalytic dehydrogenation purity of 99.999% above can be produced purity oxygen. Other purification methods change by pressure swing adsorption method and the membrane separation. High-purity oxygen for silicon dioxide chemical vapor deposition, as the source and produce highly purified water oxidation reaction agent; Dry oxidation, And the four fluoride mixes, used for carbon plasm sculpture.
The main purpose of the oxygen from it can maintain life and combustion properties; In the metallurgical industry is widely used. also can be used in water treatment.