Bulk Liquid Oxygen  [ Return towards  Bulk Gases  ]

Gaseous oxygen is ….

• Tasteless, odourless, colourless
• Extremely reactive chemically, forming compounds with all other elements except the noble gases
• Non-flammable but vigorously supports and enhances the combustion of other materials
• Saturation Value into Water is 5 times higher than that for air
• Essential to support animal and plant life

Liquid oxygen ….

• Is BLUE in colour!
• Can exist as a liquid at atmospheric pressure and - 183 º C, e.g. in a Thermos® flask

We are certified to supply bulk liquid oxygen for medical use. At our plant, quality is assured by continuous on-line process analysis and individual analysis of every tanker both before and after filling.

Oxygen, O2, comprises 21% of the earth's atmosphere. Commercially available liquid oxygen is made in large cryogenic air separation plants , where normal atmospheric air is cleaned, compressed and cooled by expansion to create liquefied air which is subsequently separated by fractional distillation at cryogenic temperatures.
Liquid oxygen is stored and transported in special vacuum-insulated tanks and tankers at temperatures in the range - 183 to - 143 º C and corresponding pressures ranging from atmospheric to about 20 bar.
Tanks and tankers have no refrigeration systems to maintain the internal temperature, hence heat ingress may cause the liquid to boil and increase the pressure in the tank. Automatic systems vent any excess pressure. Generally, liquid oxygen is transported cold at a low pressure. Customers' tanks are generally high pressure (up to 20 bar).