| Identification | ||
| Name | Triphenylphosphine oxide | |
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| Molecular Structure |
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| Molecular Formula | C18H15OP | |
| Molecular Weight | 278.29 | |
| CAS Registry Number | 791-28-6 | |
| EINECS | 212-338-8 | |
| Properties | ||
| Melting point | 154-158 ºC | |
| Boiling point | 360 ºC | |
| Flash point | 180 ºC | |
| Water solubility | slightly soluble | |