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Liquid oxygen

  
 
Description
Oxygen is colorless, odorless and tasteless. It is nonflammable. Almost all materials burn in air, burn much stronger force in oxygen. The atmosphere consists of 20.95 percent oxygen. At temperatures below -184℃ oxygen is in liquid form and has a transparent blue color, and is slightly heavier than water.



Applications
The principal uses of oxygen stems from its strong oxidizing
1. Iron & steel manufacturing
2. Combustion-supporting, welding, cutting, surfaces strengthening
3. Petrochemical products



PHYSICAL AND CHEMICAL PROPERTIES
Appearance : Liquefied gas. blue Odor : No odor warning properties. Odor threshold : No data available. pH : Not applicable. Melting point/range : -362 °F (-219 °C) Boiling point/range : -297 °F (-183 °C) Flash point : Not applicable. Evaporation rate : Not applicable. Upper/lower explosion/flammability limit : No data available. Vapor pressure : Not applicable. Water solubility : 0.039 g/l Relative vapor density : 1.1 (air = 1) Relative density : 1.1 (water = 1) Partition coefficient (n- : Not applicable. Oxygen (Refrigerated) octanol/water) Auto-ignition temperature : No data available. Decomposition temperature : No data available. Viscosity : Not applicable. Molecular Weight : 32 g/mol.

Hazards & Transportation
Hazard Statements
H270: May cause or intensify fire; oxidiser. H281:Contains refrigerated gas; may cause cryogenic burns or injury. Combustibles in contact with liquid oxygen may explode on ignition or impact.
Major Hazard: fire and high pressure
Toxicity: high concentration may cause pulmonary irritations
Fire Potential: highly oxidizing
Odor: none
DOTE Name: oxygen
DOT label: oxidizer
Identification NO.: UN-1072 (compressed gas)
                                UN-1073 (refrigerated liquid)
Hazard Class / Division: 2.2

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