Description

Liquid oxygen has a pale blue color and is strongly paramagnetic; it can be suspended between the poles of a powerful horseshoe magnet. Liquid oxygen has a density of 1.**1 g/cm3  and is cryogenic with a freezing point of *0.5 K (−**8.*7  °F, −**2.*5 °C) and a boiling point of *0.*9 K (−**7.*3 °F, −**2.*6 °C) at **1.**5 kPa (**0 mmHg). Liquid oxygen has an expansion ratio of 1:**1 under 1 standard atmosphere(**0 kPa) and *0 °C (*8 °F