Phosgene, COCl2, is a colourless, reactive and very poisonous gas.
It is used in the production of polyurethane and smaller amounts of phosgene is used
The gas was used during World War I as a feared war gas.
Molecular weight 98.92 g/mol
Solid phase Melting point: -118 °C
Liquid phase Boiling point: 8.3 °C