High purity oxygen has a great role in life， mostly used in metallurgical industry， chemical industry， defence industry， etc.， which brings a lot of help and convenience to our daily life.

In addition to high-purity oxygen directly used as fuel and refrigerant， can also be used to make a variety of organic composition materials， such as dehydrogenation can be made butene and butadiene; isomerization can be made isobutane; catalytic oxidation can be made maleic anhydride， acetic acid， etc.; halogenation can be made by halogenated butane; nitro nitration can be made nitrobutane; catalytic at high temperatures can be made of carbon disulfide; water vapour can be converted into hydrogen gas.

Oxygen is dissolved acetylene， acetone cylinders， if the skewed point of view below 30 degrees， if the valve is turned on， it may lead to acetone outflow and air mixed with explosive mixtures can be constituted， the top of the explosion 2.55% ~ 12.8%. Oxygen cylinders are filled with high-pressure oxygen， there are physical and chemical elements of insecurity， oxygen is tightened and the pressure rises， there is a tendency to achieve equilibrium with the surrounding atmospheric pressure， when the pressure difference with the atmospheric pressure between the greater， the greater this tendency. When a very large pressure difference once a very short period of time in a large space to quickly reach this balance， that is， constitute what is commonly known as the explosion. If through a smaller pore space in a relatively long period of time to achieve such an equilibrium， constitute a jet， both can cause serious consequences， which is the physical elements. Because oxygen is a combustion-inducing substances， once encountered with combustible substances and ignition conditions， you can have a strong combustion， and even present explosive fire， which is the chemical element. Therefore， high-purity oxygen cylinders in the field of placement， handling and in the use of the necessity of stable erection， mounted on a special vehicle fixed equipment. Acetylene cylinder and oxygen cylinder distance shall not be less than 5 metres， and acetylene cylinders shall not be lying， the two shall not be less than 10 metres away from the ignition point， shall not be exposed to the sun， it is necessary to stay away from radiators， piping systems， circuit wiring， etc.， and may be for the grounding of the object. Stop striking the cylinder with electrodes and arcing on the cylinder.