Triethyl phosphate

Triethyl phosphate[1]
Names
Preferred IUPAC name
Triethyl phosphate
Other names
Phosphoric acid triethyl ester
Phosphoric ester (archaic)
Flame retardant TEP[2]
Tris(ethyl) phosphate
Triethoxyphosphine oxide
Ethyl phosphate (neutral)
Identifiers
3D model (JSmol)
Abbreviations TEP
ChEBI
ChemSpider
DrugBank
ECHA InfoCard 100.001.013
UNII
  • InChI=1S/C6H15O4P/c1-4-8-11(7,9-5-2)10-6-3/h4-6H2,1-3H3 Y
    Key: DQWPFSLDHJDLRL-UHFFFAOYSA-N Y
  • InChI=1/C6H15O4P/c1-4-8-11(7,9-5-2)10-6-3/h4-6H2,1-3H3
    Key: DQWPFSLDHJDLRL-UHFFFAOYAA
  • O=P(OCC)(OCC)OCC
Properties
(CH3CH2)3PO4
Molar mass 182.156 g·mol−1
Appearance colorless liquid
Density 1.072 g/cm3
Melting point −56.5 °C (−69.7 °F; 216.7 K)
Boiling point 215 °C (419 °F; 488 K)
Miscible
−125.3·10−6 cm3/mol
Hazards
NFPA 704 (fire diamond)
2
1
0
Flash point 107 °C (225 °F; 380 K)
Safety data sheet (SDS) [3]
Related compounds
Related compounds
Trimethyl phosphate
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Triethyl phosphate is an organic chemical compound with the formula (CH3CH2)3PO4 or Et3PO4, where Et is ethyl. It is a colorless liquid. It is the triethyl ester of phosphoric acid and can be called "phosphoric acid, triethyl ester".

Its primary uses are as an industrial catalyst (in acetic anhydride synthesis), a polymer resin modifier, and a plasticizer (e.g. for unsaturated polyesters). In smaller scale it is used as a solvent for e.g. cellulose acetate, flame retardant, an intermediate for pesticides and other chemicals, stabilizer for peroxides, a strength agent for rubber and plastic including vinyl polymers and unsaturated polyesters, etc.[4]

History

It was studied for the first time by French chemist Jean Louis Lassaigne in the early 19th century.

See also

References

  1. ^ "Zhangjiagang Shunchang Chemical Co., Ltd". Triethylphosphate. Archived from the original on December 17, 2004. Retrieved June 13, 2009.
  2. ^ https://pubchem.ncbi.nlm.nih.gov/compound/Triethyl-Phosphate
  3. ^ https://assets.thermofisher.com/DirectWebViewer/private/document.aspx?prd=ALFAA40001~~PDF~~MTR~~AGHS~~EN~~2024-03-27%2004:53:15~~Triethyl%20phosphate~~
  4. ^ Triethylphosphate, International Programme on Chemical Safety