Triethyl phosphate

ReagentPlus®, ≥99.8%

Ethyl phosphate, TEP
Linear Formula:
CAS Number:
Molecular Weight:
Beilstein/REAXYS Number:
EC Number:
MDL number:
PubChem Substance ID:

Quality Level

vapor density

6.28 (vs air)

vapor pressure

1 mmHg ( 40 °C)

product line




autoignition temp.

845 °F

expl. lim.

10 %

refractive index

n20/D 1.403 (lit.)


215 °C (lit.)


1.072 g/mL at 25 °C (lit.)

SMILES string




InChI key


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General description

Triethyl phosphate is an alkyl phosphate. It participates in the thermal transformation of sodium acetate-2-C14 to n-butyl acetate-2-C14.


1, 4 L in poly bottle
100 mL in poly bottle
20 L in steel drum

Other Notes

Tandem Mass Spectrometry data independently generated by Scripps Center for Metabolomics is available to view or download in PDF. 538728.pdf Tested metabolites are featured on Scripps Center for Metabolomics METLIN Metabolite Database. To learn more, visit sigma.com/metlin.

Legal Information

ReagentPlus is a registered trademark of Sigma-Aldrich Co. LLC


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Hazard Statements

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves


NONH for all modes of transport

WGK Germany


Flash Point(F)

266.0 °F - closed cup

Flash Point(C)

130 °C - closed cup

Certificate of Analysis

Certificate of Origin

Preparation of Ethyl Acetate-2-C14 and n-Butyl Acetate-2-C14 Using Alkyl Phosphates1
Ropp GA.
Journal of the American Chemical Society, 72.5 , 2299-2299 (1950)
Novel PVDF-HFP flat sheet membranes prepared by triethyl phosphate (TEP) solvent for direct contact membrane distillation
Fadhil S, et al.
Chemical Engineering and Processing, 102, 16-26 (2016)
Xiaoyu Du et al.
Materials science & engineering. C, Materials for biological applications, 103, 109731-109731 (2019-07-28)
The fabrication of bone tissue engineering scaffolds with high osteogenic ability and favorable mechanical properties is of huge interest. In this study, a silk fibroin (SF) solution of 30 wt% was extracted from cocoons and combined with mesoporous bioactive glass (MBG)...
Role of inner solvation sheath within salt-solvent complexes in tailoring electrode/electrolyte interphases for lithium metal batteries.
Ren, et al.
Proceedings of the National Academy of Sciences of the USA, 117, 28603-28613 (2021)
A novel approach to recycling of polyurethanes: chemical degradation of flexible polyurethane foams by triethyl phosphate
Troev K, et al.
Polymer, 41.19, 7017-7022 (2000)

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