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Oxygen is a colorless, odorless, and tasteless gas. The relative density of gas (air=1) is 1.105 at 21.1℃ and 101.3kPa, and the density of liquid is 1141kg/m3 at the boiling point. Oxygen is not toxic, but exposure to high concentrations of oxygen can have adverse effects on the lungs and central nervous system. Oxygen can be shipped as a non-liquefied gas at a pressure of 13790kPa or as a cryogenic liquid.
Many oxidation reactions in the chemical industry use pure oxygen rather than air in order to benefit from higher reaction rates, easier product separation, higher yields, or smaller equipment size.
| Gas | Oxygen/Liquid oxygen |
| CAS No. | 7782-44-7 |
| Purity | ≥99.2% |
| Capacity | Dewar:200L、Cylinder: 40L、Cylinder bundle: 40L*16 |
| GHS hazard category | oxidizing gas, category 1; Pressurized gas. |
| Preventive measures | Keep away from clothing and flammable material storage. Valves or fastening devices shall not contain grease or oil agents. |
| Safe storage | Sun resistant. Store in a well ventilated area. |
| Fire extinguishing precautions | Cut off the gas source. Spray water to cool the container and move it from the fire scene to an open area as much as possible. |
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