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Triethyl phosphate

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Phase change data

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled as indicated in comments:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny, director
AC - William E. Acree, Jr., James S. Chickos

Quantity Value Units Method Reference Comment
Tboil489.KN/AHaertel, 1985Uncertainty assigned by TRC = 2. K; TRC
Quantity Value Units Method Reference Comment
Deltavap55.7kJ/molCGCPanneerselvam, Antony, et al., 2007Based on data from 413. - 453. K.; AC

Enthalpy of vaporization

DeltavapH (kJ/mol) Temperature (K) Method Reference Comment
46.3327.AStephenson and Malanowski, 1987Based on data from 312. - 484. K. See also Stull, 1947.; AC

Antoine Equation Parameters

log10(P) = A − (B / (T + C))
    P = vapor pressure (bar)
    T = temperature (K)

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Temperature (K) A B C Reference Comment
312.8 - 484.4.892372277.195-19.17Stull, 1947Coefficents calculated by NIST from author's data.

In addition to the Thermodynamics Research Center (TRC) data available from this site, much more physical and chemical property data is available from the following TRC products:


Gas phase ion energetics data

Go To: Top, Phase change data, IR Spectrum, Mass spectrum (electron ionization), References, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data evaluated as indicated in comments:
HL - Edward P. Hunter and Sharon G. Lias

Data compiled as indicated in comments:
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron

Quantity Value Units Method Reference Comment
Proton affinity (review)909.3kJ/molN/AHunter and Lias, 1998HL
Quantity Value Units Method Reference Comment
Gas basicity879.6kJ/molN/AHunter and Lias, 1998HL

Ionization energy determinations

IE (eV) Method Reference Comment
10.0PEChattorpadhyay, Findley, et al., 1981LLK
9.79PEHodges, McDonnell, et al., 1980LLK
12.8 ± 0.2EIBafus, Gallegos, et al., 1966RDSH
10.06 ± 0.27EIBafus, Gallegos, et al., 1966RDSH
10.69PEChattorpadhyay, Findley, et al., 1981Vertical value; LLK
10.54PEVovna, Lopatin, et al., 1975Vertical value; LLK
10.4PEBetteridge, Thompson, et al., 1972Vertical value; LLK

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
C2H5O+16.8 ± 0.2?EIBafus, Gallegos, et al., 1966RDSH
C2H6O3P+15.5 ± 0.4?EIBafus, Gallegos, et al., 1966RDSH
C2H6O4P+13.5 ± 0.3?EIBafus, Gallegos, et al., 1966RDSH
C2H7O3P+13.5 ± 0.3?EIBafus, Gallegos, et al., 1966RDSH
C2H8O3P+13.6 ± 0.2?EIBafus, Gallegos, et al., 1966RDSH
C2H8O4P+12.7 ± 0.2?EIBafus, Gallegos, et al., 1966RDSH
C4H11O3P+11.6 ± 0.4?EIBafus, Gallegos, et al., 1966RDSH
C4H12O3P+12.3 ± 0.2?EIBafus, Gallegos, et al., 1966RDSH
C4H12O4P+11.5 ± 0.3C2H3EIBafus, Gallegos, et al., 1966RDSH
C5H12O4P+11.9 ± 0.3CH3EIBafus, Gallegos, et al., 1966RDSH
PH2O3+17.8 ± 0.3?EIBafus, Gallegos, et al., 1966RDSH
PH3O3+14.4 ± 0.2?EIBafus, Gallegos, et al., 1966RDSH
PH4O3+14.5 ± 0.3?EIBafus, Gallegos, et al., 1966RDSH
PH4O4+14.3 ± 0.3?EIBafus, Gallegos, et al., 1966RDSH

IR Spectrum

Go To: Top, Phase change data, Gas phase ion energetics data, Mass spectrum (electron ionization), References, Notes

Data compiled by: Coblentz Society, Inc.

Data compiled by: Tanya L. Myers, Russell G. Tonkyn, Ashley M. Oeck, Tyler O. Danby, John S. Loring, Matthew S. Taubman, Stephen W. Sharpe, Jerome C. Birnbaum, and Timothy J. Johnson

Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director


Mass spectrum (electron ionization)

Go To: Top, Phase change data, Gas phase ion energetics data, IR Spectrum, References, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director

Spectrum

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Mass spectrum
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Additional Data

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Owner NIST Mass Spectrometry Data Center
Collection (C) 2014 copyright by the U.S. Secretary of Commerce
on behalf of the United States of America. All rights reserved.
Origin NIST Mass Spectrometry Data Center, 1990.
NIST MS number 118734

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References

Go To: Top, Phase change data, Gas phase ion energetics data, IR Spectrum, Mass spectrum (electron ionization), Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Haertel, 1985
Haertel, G.H., Low-volatility polar organic solvents for sulfur dioxide, hydrogen sulfide, and carbonyl sulfide., J. Chem. Eng. Data, 1985, 30, 57. [all data]

Panneerselvam, Antony, et al., 2007
Panneerselvam, K.; Antony, M.P.; Srinivasan, T.G.; Rao, P.R. Vasudeva, Measurement of enthalpies of vaporization of trialkyl phosphates using correlation gas chromatography, Thermochimica Acta, 2007, 466, 1-2, 49-56, https://doi.org/10.1016/j.tca.2007.10.007 . [all data]

Stephenson and Malanowski, 1987
Stephenson, Richard M.; Malanowski, Stanislaw, Handbook of the Thermodynamics of Organic Compounds, 1987, https://doi.org/10.1007/978-94-009-3173-2 . [all data]

Stull, 1947
Stull, Daniel R., Vapor Pressure of Pure Substances. Organic and Inorganic Compounds, Ind. Eng. Chem., 1947, 39, 4, 517-540, https://doi.org/10.1021/ie50448a022 . [all data]

Hunter and Lias, 1998
Hunter, E.P.; Lias, S.G., Evaluated Gas Phase Basicities and Proton Affinities of Molecules: An Update, J. Phys. Chem. Ref. Data, 1998, 27, 3, 413-656, https://doi.org/10.1063/1.556018 . [all data]

Chattorpadhyay, Findley, et al., 1981
Chattorpadhyay, S.; Findley, G.L.; McGlynn, S.P., Photoelectron spectroscopy of phosphites and phosphates, J. Electron Spectrosc. Relat. Phenom., 1981, 24, 27. [all data]

Hodges, McDonnell, et al., 1980
Hodges, R.V.; McDonnell, T.J.; Beauchamp, J.L., Properties reactions of trimethyl phosphite, trimethyl phosphate, triethyl phosphate, and trimethyl phosphorothionate by ion cyclotron resonance spectroscopy, J. Am. Chem. Soc., 1980, 102, 1327. [all data]

Bafus, Gallegos, et al., 1966
Bafus, D.A.; Gallegos, E.J.; Kiser, R.W., An electron impact investigation of some alkyl phosphate esters, J. Phys. Chem., 1966, 70, 2614. [all data]

Vovna, Lopatin, et al., 1975
Vovna, V.I.; Lopatin, S.N.; Pettsol'd, R.; Vilesov, F.I., Photoelectron spectra and electronic structure of some phosphoryl compounds, Khim. Vys. Energ., 1975, 9, 9. [all data]

Betteridge, Thompson, et al., 1972
Betteridge, D.; Thompson, M.; Baker, A.D.; Kemp, N.R., Photoelectron spectra of phosphorus halides, alkyl phosphites and phosphates, organophosphorus pesticides, and related compounds, Anal. Chem., 1972, 44, 2005. [all data]


Notes

Go To: Top, Phase change data, Gas phase ion energetics data, IR Spectrum, Mass spectrum (electron ionization), References