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  • Product Name:   Triethylphosphine
  • Synonyms:   AURORA KA-1111;CYTOP(R) 320;(C2H5)3P;Phosphorus triethyl;tl409
  • CAS No.:   554-70-1
  • Molecular Formula:   C6H15P
  • Molecular Weight :   118.16
  • Specification :   98%
  • Place of Origin:   China
  • Appearance :   
  • Document :   Download

Description of Triethylphosphine
Triethylphosphine Chemical Properties
Melting point  -88°C
Boiling point  127-128 °C(lit.)
density  0.88 g/mL at 20 °C
refractive index  n20/D 1.456(lit.)
Fp  1 °F
form  liquid
color  colorless
Water Solubility  Insoluble in water.
Sensitive  Air & Moisture Sensitive
Merck  14,9675
CAS DataBase Reference 554-70-1(CAS DataBase Reference)
NIST Chemistry Reference Phosphine, triethyl-(554-70-1)
EPA Substance Registry System Phosphine, triethyl-(554-70-1)
Safety Information
Hazard Codes  F,C
Risk Statements  11-34-67-17-40-37-19
Safety Statements  26-36/37/39-45-7/9-33-16
RIDADR  UN 2924 3/PG 2
WGK Germany  3
RTECS  SZ3400000
F  10-13-23
TSCA  Yes
HazardClass  4.2
PackingGroup  I
Triethylphosphine Usage And Synthesis
Chemical Properties Colorless Transparent Liquid
Uses suzuki reaction
Uses In organic syntheses.
Purification Methods All operations should be carried out in an efficient fume cupboard because it is flammable, toxic and has a foul odour. Purify the phosphine by fractional distillation at atmospheric pressure in a stream of dry N2, as it is oxidised by air to the oxide. In 300% excess of CS2 it forms Et3PCS2 (m 118-120o crystallising from MeOH) which decomposes in CCl4 to give Et3PS as a white solid m 94o when recrystallised from EtOH. [Sorettas & Isbell J Org Chem 27 273 1962, Henderson & Streuli J Am Chem Soc 82 5791 1960, pK: Henderson & Streuli J Am Chem Soc 82 5791 1960, see also trimethylphosphine.] Store it in sealed vials under N2. Alternatively, dissolve it in Et2O and shake it with a solution of AgI and KI to form the insoluble complex. Filter off the complex, dry it over P2O5 and the Et3P is regenerated by heating the complex in a tube attached to a vacuum system. [Hewitt & Holliday J Chem Soc 530 1953, Schettas & Isbell J Org Chem 27 2573 1962, Kosolapoff Organophosphorus Compounds, Wiley p 31 1950, Beilstein 4 IV 3431.]
Triethylphosphine Preparation Products And Raw materials
Preparation Products Auranofin

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