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What exactly is LOX?

LOX stands for Liquid Oxygen. LOX is pale blue, nonviscous, water like fluid that boils at -297°F. At atmospheric pressure, it is 1.14 times heavier than water and weighs 2.5123 pounds per liter.

LOX, when converted to gaseous oxygen, at 70°F, expands to approximately 860 times its original volume. So one liter of LOX expands to about 860 liters of gas. Liquid to gas expansion at atmospheric pressure is shown below.

Liquid Oxygen
at -297°F (-183°C)
Gaseous Oxygen
at 70°F (21°C)
1 Liter
860 Liters
5 liters
4,300 liters
10 liters
8,600 liters
15 liters
12,900 liters
25 liters
21,500 liters
50 liters
43,000 liters
75 liters
64,500 liters

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