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| | 1,1-diphenylurea Basic information |
| | 1,1-diphenylurea Chemical Properties |
| Melting point | 189°C | | Boiling point | 352.09°C (rough estimate) | | density | 1.2760 | | refractive index | 1.6920 (estimate) | | pka | 15.11±0.50(Predicted) | | Stability: | Stable. Combustible. Incompatible with strong oxidizing agents. | | EPA Substance Registry System | 1,1-Diphenylurea (603-54-3) |
| | 1,1-diphenylurea Usage And Synthesis |
| Chemical Properties | white crystals | | General Description | Needles or white crystals. | | Air & Water Reactions | 1,1-diphenylurea may be sensitive to prolonged exposure to air or light. . Insoluble in water. | | Reactivity Profile | 1,1-diphenylurea is an amide. Amides/imides react with azo and diazo compounds to generate toxic gases. Flammable gases are formed by the reaction of organic amides/imides with strong reducing agents. Amides are very weak bases (weaker than water). Imides are less basic yet and in fact react with strong bases to form salts. That is, they can react as acids. Mixing amides with dehydrating agents such as P2O5 or SOCl2 generates the corresponding nitrile. The combustion of these compounds generates mixed oxides of nitrogen (NOx). | | Fire Hazard | Flash point data for 1,1-diphenylurea are not available, but 1,1-diphenylurea is probably combustible. | | Purification Methods | Crystallise 1,1-diphenylurea from MeOH. [Beilstein for 1,3 12 IV 741.] |
| | 1,1-diphenylurea Preparation Products And Raw materials |
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