Diethyl Phthalate

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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:
BS - Robert L. Brown and Stephen E. Stein
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DH - Eugene S. Domalski and Elizabeth D. Hearing

Quantity Value Units Method Reference Comment
Tboil571.2KN/AWeast and Grasselli, 1989BS
Tboil571.KN/ABuckingham and Donaghy, 1982BS
Tboil571.65KN/APerkin, 1896Uncertainty assigned by TRC = 1. K; TRC
Quantity Value Units Method Reference Comment
Tfus272.8KN/ABuckingham and Donaghy, 1982BS
Tfus240.15KN/ATimmermans and Hennaut-Roland, 1955Uncertainty assigned by TRC = 1. K; TRC
Quantity Value Units Method Reference Comment
Ttriple269.92KN/AChang, Horman, et al., 1967Uncertainty assigned by TRC = 0.02 K; TRC
Quantity Value Units Method Reference Comment
Δvap19.6 ± 0.1kcal/molEB,MERohác, Ruzicka, et al., 2004AC
Δvap20.9kcal/molEB,MERohác, Ruzicka, et al., 2004AC
Δvap19.4 ± 0.2kcal/molGCCFuchs and Peacock, 1980AC

Reduced pressure boiling point

Tboil (K) Pressure (atm) Reference Comment
430.0.013Buckingham and Donaghy, 1982BS

Enthalpy of vaporization

ΔvapH (kcal/mol) Temperature (K) Method Reference Comment
20.7310.GSGrayson and Fosbraey, 2006Based on data from 307. to 333. K.; AC
17.8426.BGKatayama, 1988AC
18.6360.AStephenson and Malanowski, 1987Based on data from 345. to 453. K.; AC
14.1436.AStephenson and Malanowski, 1987Based on data from 421. to 570. K.; AC
21.10 ± 0.50233.VHoyer and Peperle, 1958Reanalyzed by Pedley, Naylor, et al., 1986, Original value = 20.4 kcal/mol; ALS
15.8396.N/AStull, 1947Based on data from 381. to 567. K.; AC

Antoine Equation Parameters

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

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Temperature (K) A B C Reference Comment
382.0 to 567.5.4442916.977-31.406Stull, 1947Coefficents calculated by NIST from author's data.

Enthalpy of fusion

ΔfusH (kcal/mol) Temperature (K) Reference Comment
4.2983269.92Chang, Horman, et al., 1967, 2DH
4.300269.9Domalski and Hearing, 1996AC

Entropy of fusion

ΔfusS (cal/mol*K) Temperature (K) Reference Comment
15.92269.92Chang, Horman, et al., 1967, 2DH

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:


Go To: Top, Phase change data, Notes

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

Weast and Grasselli, 1989
CRC Handbook of Data on Organic Compounds, 2nd Editon, Weast,R.C and Grasselli, J.G., ed(s)., CRC Press, Inc., Boca Raton, FL, 1989, 1. [all data]

Buckingham and Donaghy, 1982
Buckingham, J.; Donaghy, S.M., Dictionary of Organic Compounds: Fifth Edition, Chapman and Hall, New York, 1982, 1. [all data]

Perkin, 1896
Perkin, W.H., LXIX. On Magnetic Rotatory Power, especially of Aromatic Compounds, J. Chem. Soc., 1896, 69, 1025-1257. [all data]

Timmermans and Hennaut-Roland, 1955
Timmermans, J.; Hennaut-Roland, M., Work of the International Bureau of Physical-Chemical Standards. IX. The Physical Constants of Twenty Organic Compounds, J. Chim. Phys. Phys.-Chim. Biol., 1955, 52, 223. [all data]

Chang, Horman, et al., 1967
Chang, S.S.; Horman, J.A.; Bestul, A.B., Heat Capacities and Related Thermal Data for Diethyl Phthalate Crystal, Glass, and Liquid to 360 K, J. Res. Natl. Bur. Stand., Sect. A, 1967, 71, 293. [all data]

Rohác, Ruzicka, et al., 2004
Rohác, Vladislav; Ruzicka, Kvetoslav; Ruzicka, Vlastimil; Zaitsau, Dzmitry H.; Kabo, Gennady J.; Diky, Vladimir; Aim, Karel, Vapour pressure of diethyl phthalate, The Journal of Chemical Thermodynamics, 2004, 36, 11, 929-937, . [all data]

Fuchs and Peacock, 1980
Fuchs, Richard; Peacock, L. Alan, Heats of vaporization of esters by the gas chromatography--calorimetry method, Can. J. Chem., 1980, 58, 24, 2796-2799, . [all data]

Grayson and Fosbraey, 2006
Grayson, B. Terence; Fosbraey, Lynda A., Determination of the vapour pressure of pesticides, Pestic. Sci., 2006, 13, 3, 269-278, . [all data]

Katayama, 1988
Katayama, Hirotake, Vapor pressures of diethyl, diisopropyl, and dibutyl phthalates at reduced pressures., Bull. Chem. Soc. Jpn., 1988, 61, 9, 3326-3328, . [all data]

Stephenson and Malanowski, 1987
Stephenson, Richard M.; Malanowski, Stanislaw, Handbook of the Thermodynamics of Organic Compounds, 1987, . [all data]

Hoyer and Peperle, 1958
Hoyer, H.; Peperle, W., Dampfdrunkmessungen an organischen substanzen und ihre sublimationswarmen, Z. Electrochem., 1958, 62, 61-66. [all data]

Pedley, Naylor, et al., 1986
Pedley, J.B.; Naylor, R.D.; Kirby, S.P., Thermochemical Data of Organic Compounds, Chapman and Hall, New York, 1986, 1-792. [all data]

Stull, 1947
Stull, Daniel R., Vapor Pressure of Pure Substances. Organic and Inorganic Compounds, Ind. Eng. Chem., 1947, 39, 4, 517-540, . [all data]

Chang, Horman, et al., 1967, 2
Chang, S.S.; Horman, J.A.; Bestul, A.B., Heat capacities and related thermal data for diethyl phthalate crystal, glass, and liquid to 360K, J. Res., 1967, NBS 71A, 293-305. [all data]

Domalski and Hearing, 1996
Domalski, Eugene S.; Hearing, Elizabeth D., Heat Capacities and Entropies of Organic Compounds in the Condensed Phase. Volume III, J. Phys. Chem. Ref. Data, 1996, 25, 1, 1, . [all data]


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