Basic information
- CAS
4731-53-7- Standard SMILES
CCCCCCCCP(CCCCCCCC)CCCCCCCC- InChIKey
RMZAYIKUYWXQPB-UHFFFAOYSA-N- Molecular formula
- C24.H51.P
- Average molar mass
- 370.6 g/mol
- Monoisotopic mass
- 370.37283826
Names & identifiers
- Preferred name
- Trioctylphosphine
- IUPAC
- trioctylphosphane
- English name
- Trioctylphosphine
- Molecular formula
- C24H51P
- Molecular weight
- 370.64
Names & synonyms
TRIOCTYLPHOSPHINETri-n-octylphosphine4731-53-7Phosphine, trioctyl-TL 411VE0Y037UCNEINECS 225-234-2NSC 102529BRN 1776995HISHICOLIN P 8NSC-1025294-04-00-03438 (Beilstein Handbook Reference)
Show more names
P(Oct)3tl411nsc102529HISHICOLIN P-8Cytop? 380CYTOP(R) 380trioctyl-phosphin
DTXSID9063582TrinoctylphosphinePhosphine, trioctylRefChem:899961DTXCID9040552225-234-2trioctylphosphaneMFCD00015298
Database identifiers
- CAS
4731-53-7- PubChem CID
- 20851
- DTXSID
DTXSID9063582- UNII
- VE0Y037UCN
- EC Number
- 225-234-2
- Nikkaji
- J151.214E
Properties
Computed structural properties
- XLogP
- 10.2
- Topological polar surface area
- 0 Ų
- Hydrogen bond donors
- 0
- Hydrogen bond acceptors
- 0
- Rotatable bonds
- 21
- Heavy atoms
- 25
- Formal charge
- 0
- Complexity
- 188
Experimental & physicochemical properties
Chemical ClassesOther Classes -> Phosphorus Compounds
Physical Description
Liquid
Colorless liquid with an odor like garlic; [Alfa Aesar MSDS]
Physicochemical properties
- Melting point
- 30 °C · 30°C
- Boiling point
- 284 · 284-291 °C50 mm Hg(lit.)
- Density
- 0.831 g/mL · 0.831 g/mL at 25 °C(lit.)
- refractive index
- 20 · n20/D 1.468(lit.)
- Flash point
- 297 °F · 297 °F
- storage temp.
- 2 · 2-8°C, protect from light, stored under nitrogen
- form
- Powder or Crystalline Powder
- color
- White to off-white
- Specific Gravity
- 0.831 · 0.831
- Water Solubility
- Immiscible with water.
Safety & regulation
Safety information is for reference only and does not replace the supplier’s Safety Data Sheet (SDS), applicable regulations, or professional assessment.
GHS classification
GHS Classification
Danger
H314 (75.9%): Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]
P260, P261, P264, P264+P265, P271, P280, P301+P330+P331, P302+P352, P302+P361+P354, P304+P340, P305+P351+P338, P305+P354+P338, P316, P319, P321, P332+P317, P337+P317, P362+P364, P363, P403+P233, P405, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 87 reports by companies from 10 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Hazard information
Regulatory Information
Phosphine, trioctyl- is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of Phosphine, trioctyl- are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)
Status: Active Update: 09-08-2021 https://echa.europa.eu/registration-dossier/-/registered-dossier/19595
Hazards SummaryCauses burns; Inhalation may cause corrosive injuries to upper respiratory tract and lungs; [Alfa Aesar MSDS] See Tributylphosphine.
Hazard Classes and CategoriesSkin Corr. 1 (75.9%)
Safety & protection
Protective Action Criteria (PAC)
0.11 [mg/m3]
1.2 [mg/m3]
7.2 [mg/m3]
Toxicology
Chemistry & industry
Uses & manufacturing
U.S. Production2023: 50,000 - <250,000 lb
Industry UsesCatalyst
General Manufacturing Information
Computer and Electronic Product Manufacturing
Phosphine, trioctyl-: ACTIVE
Applications
DescriptionTrioctylphosphine (also known as Tri-n-octylphosphine, abbreviated as TOP) is a weakly basic organophosphorus compound that can be used in the synthesis of nanomaterials (such as metallic nanoparticles). It also serves as the most popular organophosphorus source in oil-phase synthesis, a stabiliser for certain nanorods, and acts as a solvent in certain chemical processes.
UsesTri-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.
Upstream & downstream products
Upstream raw materials
Downstream products
Suppliers100 total
Related reactions
29 records
Compound notes
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