3.3 Physical Properties
Grade and Strength - Commercial 100%
Properties & Characteristics
Color and Physical State - At room temperature and pressure, phosgene is a colorless,
non-flammable, potentially highly toxic gas. At sufficiently lower temperatures or higher
pressures or both, it is a highly toxic colorless liquid.
Note: Phosgene, in the presence of high humidity, water, fog or ammonia, may
produce a white cloud.