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Diphosgene
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| Names | |
|---|---|
| Preferred IUPAC name
Trichloromethyl carbonochloridate | |
| Other names
Trichloromethyl chloroformate, surpalite
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| Identifiers | |
3D model (JSmol)
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| ChemSpider | |
| ECHA InfoCard | 100.007.242 |
| EC Number |
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PubChem CID
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| RTECS number |
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| UNII | |
CompTox Dashboard (EPA)
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| Properties | |
| C2Cl4O2 | |
| Molar mass | 197.82 g/mol |
| Appearance | liquid at room temperature |
| Density | 1.65 g/cm3 |
| Melting point | −57 °C (−71 °F; 216 K) |
| Boiling point | 128 °C (262 °F; 401 K) |
| insoluble, reacts | |
| Hazards | |
| Occupational safety and health (OHS/OSH): | |
Main hazards
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highly toxic, maybe corrosive; asphyxiant |
| GHS labelling: | |
 
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| Danger | |
| H300, H301, H314, H330 | |
| P260, P264, P270, P271, P280, P284, P301+P310, P301+P330+P331, P303+P361+P353, P304+P340, P305+P351+P338, P310, P320, P321, P330, P363, P403+P233, P405, P501 | |
| Flash point | 32 °C (90 °F; 305 K) |
| Related compounds | |
Related compounds
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COCl2, Cl2 |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Diphosgene is an organic chemical compound with the formula ClCO2CCl3. This colorless liquid is a valuable reagent in the synthesis of organic compounds. Diphosgene is related to phosgene and has comparable toxicity, but is more conveniently handled because it is a liquid, whereas phosgene is a gas.
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