About: Oxygen is often stored as a liquid, although it is used primarily as a gas. Liquid oxygen has a pale blue colour and is a cryogenic liquid. Cryogenic liquids are liquefied gases that have a normal boiling point below -238 degrees Fahrenheit (-150 degrees Celsius).
In commerce, liquid oxygen is classified as an industrial gas and is widely used for industrial and medical purposes. Liquid oxygen is used as an oxidant for liquid fuels in the propellant systems of missiles and rockets.
Application: Liquid oxygen is crucial for the treatment of severe Covid-19 patients since the disease affects lung functioning. They need oxygen therapy, to be supplied through medical oxygen.
