Trichloromethyl Chloroformate

Name:
Trichloromethyl Chloroformate
Detailed information:

Chemistry name:	diphosgene
M Formula:	ClCOOCCl3
Properties:
Colorless liquid; odor similar to phosgene (newly mown hay). D 1.65 (15C), bp 127–128C, fp −57C, vap d 6.9 (air = 1), refr index 1.45664 (22C). Decomposed by heat, porous substances, activated carbons (with evolution of phosgene), also by alkalies, hot water. Soluble in alcohol, benzene, and ether. Noncombustible.
Derivation:
(1) By chlorinating methyl formate, (2) by chlorinating methyl chloroformate. In both methods the mixture of chloro-derivatives is then separated by fractionation.
Grade:
Technical.
Hazard:
Toxic by inhalation and ingestion, strong irritant to tissue.
Use:
Organic synthesis, military poison gas.