|   | |
| Names | |
|---|---|
| Preferred IUPAC name Tri(octyl)phosphane | |
| Identifiers | |
| 3D model (JSmol) | |
| 1776995 | |
| ChemSpider | |
| ECHA InfoCard | 100.022.940 | 
|  PubChem CID | |
| UNII | |
|  CompTox Dashboard (EPA) | |
| 
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| 
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| Properties | |
| C24H51P | |
| Molar mass | 370.635498 | 
| Density | 0.831 g/mL | 
| Boiling point | 284 to 291 °C (543 to 556 °F; 557 to 564 K) at 50 mmHg | 
| Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
Trioctylphosphine is an organophosphorus compound with the formula P(C8H17)3 sometimes abbreviated TOP. [1] It is usually encountered as a syrup. The compound is colorless.
Trioctylphosphine reacts with oxygen to form trioctylphosphine oxide. For this reason it is usually handled with air-free techniques.
TOP reacts with elemental selenium to give trioctylphosphine selenide (TOPSe), which is a reagent for the preparation of cadmium selenide and related semiconductors. [2] [3]