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Triphenylphosphine oxide
Chemical compound / From Wikipedia, the free encyclopedia
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Triphenylphosphine oxide (often abbreviated TPPO) is the organophosphorus compound with the formula OP(C6H5)3, also written as Ph3PO or PPh3O (Ph = C6H5). It is one of the more common phosphine oxides. This colourless crystalline compound is a common but potentially useful waste product in reactions involving triphenylphosphine. It is a popular reagent to induce the crystallizing of chemical compounds.
Quick Facts Names, Identifiers ...
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Names | |
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Preferred IUPAC name
Triphenyl-λ5-phosphanone | |
Other names
Triphenylphosphine oxide | |
Identifiers | |
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3D model (JSmol) |
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745854 | |
ChEBI | |
ChEMBL | |
ChemSpider |
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ECHA InfoCard | 100.011.217 ![]() |
EC Number |
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6758 | |
PubChem CID |
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RTECS number |
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UNII | |
CompTox Dashboard (EPA) |
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Properties | |
C18H15OP | |
Molar mass | 278.29 g/mol |
Appearance | white crystals |
Density | 1.212g/cm^3 |
Melting point | 154 to 158 °C (309 to 316 °F; 427 to 431 K) |
Boiling point | 360 °C (680 °F; 633 K) |
low | |
Solubility in other solvents | polar organic solvents |
Structure | |
tetrahedral | |
Hazards | |
Occupational safety and health (OHS/OSH): | |
Main hazards |
slight |
GHS labelling:[1] | |
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Warning | |
H302, H412 | |
P261, P264, P270, P271, P273, P280, P301+P312, P302+P352, P304+P340, P305+P351+P338, P312, P330, P332+P313, P337+P313, P362, P403+P233, P405 | |
Related compounds | |
Related compounds |
P(C6H5)3S; |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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