CAS RN: 75-44-5

Other Properties

Phosgene gas liquifies @ 8 deg C
Phosgene weighs 11.6 pounds per gallon
Heat of fusion: 13.86 cal/g
Condenses at approximately 0 deg C to a clear, colorless, fuming liquid
Specific vol: 3.9 cu ft/lb at 21.1 deg C
Liquid or easily liquefied gas
Freezing Point: -128 deg C
Low boiling liquid
Phosgene is removed easily from solvents by heating or sparging with air or nitrogen
Phosgene is a planar molecule. The interatomic distances are 0.128 nm for the C-O bond, and 0.168 nm for C-Cl bond. The angle Cl-C-Cl is 117 degrees.
Density at critical point: 0.52 g/cu cm
Henry's Law constant = 1.7X10-2 atm-cu m/mole at 24.85 deg C; 6.6X10-3 atm-cu m/mole at 4.85 deg C
Hydroxyl radical reaction rate constant = 1.0X10-15 cu cm/molec-sec at 25 deg C
... hydrolyzes virtually instantaneously to form hydrogen chloride and carbon dioxide in aqueous media.
Find more information on this substance at: PubChem, PubMed