Trioctylphosphine
Synonym(s):P(Oct)3;TOP
- CAS NO.：4731-53-7
- Empirical Formula: C24H51P
- Molecular Weight: 370.64
- MDL number: MFCD00015298
- EINECS: 225-234-2
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-01-13 11:24:33
What is Trioctylphosphine?
The Uses of Trioctylphosphine
Tri-n-octylphosphine is used for coating zinc sulfide shells on cadmium-selenium quantum dot core by successive ionic layer adsorption and reaction method. It acts as a precursor to trioctylphosphine oxide. Further, it is used as a solvent for cadmium and selenium precursors. It also serves as a common reagent in the chemical synthesis of nanoparticles. It acts as a precursor to trioctylphosphine oxide.
Properties of Trioctylphosphine
| Melting point: | 30°C |
| Boiling point: | 284-291 °C50 mm Hg(lit.) |
| Density | 0.831 g/mL at 25 °C(lit.) |
| refractive index | n |
| Flash point: | 297 °F |
| form | Powder or Crystalline Powder |
| color | White to off-white |
| Specific Gravity | 0.831 |
| Water Solubility | Immiscible with water. |
| Sensitive | Air Sensitive |
| Hydrolytic Sensitivity | 8: reacts rapidly with moisture, water, protic solvents |
| BRN | 1776995 |
| InChI | InChI=1S/C24H51P/c1-4-7-10-13-16-19-22-25(23-20-17-14-11-8-5-2)24-21-18-15-12-9-6-3/h4-24H2,1-3H3 |
| CAS DataBase Reference | 4731-53-7(CAS DataBase Reference) |
| EPA Substance Registry System | Phosphine, trioctyl- (4731-53-7) |
Safety information for Trioctylphosphine
| Signal word | Danger |
| Pictogram(s) |
 Corrosion Corrosives GHS05 |
| GHS Hazard Statements |
H314:Skin corrosion/irritation |
| Precautionary Statement Codes |
P280:Wear protective gloves/protective clothing/eye protection/face protection. P301+P330+P331:IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. P303+P361+P353:IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
Computed Descriptors for Trioctylphosphine
| InChIKey | RMZAYIKUYWXQPB-UHFFFAOYSA-N |
| SMILES | P(CCCCCCCC)(CCCCCCCC)CCCCCCCC |
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