Diethyl Phthalate
- Formula: C12H14O4
- Molecular weight: 222.2372
- IUPAC Standard InChIKey: FLKPEMZONWLCSK-UHFFFAOYSA-N
- CAS Registry Number: 84-66-2
- Chemical structure:
This structure is also available as a 2d Mol file - Other names: 1,2-Benzenedicarboxylic acid, diethyl ester; Phthalic acid, diethyl ester; o-Benzenedicarboxylic acid, diethyl ester; Anozol; Ethyl phthalate; Neantine; Palatinol A; Phthalol; Placidol E; Solvanol; Unimoll DA; Diethyl-1,2-benzenedicarboxylate; Diethyl-o-phthalate; Diethylester kyseliny ftalove; Estol 1550; NCI-C60048; Phthalsaeurediaethylester; Rcra waste number U088; Diethyl ester of 1,2-Benzenedicarboxylic acid; DEP; Kodaflex DEP; 1,2-diethyl phthalate; 1,2-Benzenedicarboxylic acid, 1,2-diethyl ester; NSC 8905; o-Bis(ethoxycarbonyl)benzene
- Permanent link for this species. Use this link for bookmarking this species for future reference.
- Information on this page:
- Other data available:
- Options:
Data at NIST subscription sites:
NIST subscription sites provide data under the NIST Standard Reference Data Program, but require an annual fee to access. The purpose of the fee is to recover costs associated with the development of data collections included in such sites. Your institution may already be a subscriber. Follow the links above to find out more about the data in these sites and their terms of usage.
Phase change data
Go To: Top, 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 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 |
---|---|---|---|---|---|
Tboil | 571.2 | K | N/A | Weast and Grasselli, 1989 | BS |
Tboil | 571. | K | N/A | Buckingham and Donaghy, 1982 | BS |
Tboil | 571.65 | K | N/A | Perkin, 1896 | Uncertainty assigned by TRC = 1. K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 272.8 | K | N/A | Buckingham and Donaghy, 1982 | BS |
Tfus | 240.15 | K | N/A | Timmermans and Hennaut-Roland, 1955 | Uncertainty assigned by TRC = 1. K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Ttriple | 269.92 | K | N/A | Chang, Horman, et al., 1967 | Uncertainty assigned by TRC = 0.02 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 19.6 ± 0.1 | kcal/mol | EB,ME | Rohác, Ruzicka, et al., 2004 | AC |
ΔvapH° | 20.9 | kcal/mol | EB,ME | Rohác, Ruzicka, et al., 2004 | AC |
ΔvapH° | 19.4 ± 0.2 | kcal/mol | GCC | Fuchs and Peacock, 1980 | AC |
Reduced pressure boiling point
Tboil (K) | Pressure (atm) | Reference | Comment |
---|---|---|---|
430. | 0.013 | Buckingham and Donaghy, 1982 | BS |
Enthalpy of vaporization
ΔvapH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
20.7 | 310. | GS | Grayson and Fosbraey, 2006 | Based on data from 307. to 333. K.; AC |
17.8 | 426. | BG | Katayama, 1988 | AC |
18.6 | 360. | A | Stephenson and Malanowski, 1987 | Based on data from 345. to 453. K.; AC |
14.1 | 436. | A | Stephenson and Malanowski, 1987 | Based on data from 421. to 570. K.; AC |
21.10 ± 0.50 | 233. | V | Hoyer and Peperle, 1958 | Reanalyzed by Pedley, Naylor, et al., 1986, Original value = 20.4 kcal/mol; ALS |
15.8 | 396. | N/A | Stull, 1947 | Based on data from 381. to 567. K.; AC |
Antoine Equation Parameters
log10(P) = A − (B / (T + C))
P = vapor pressure (atm)
T = temperature (K)
View plot Requires a JavaScript / HTML 5 canvas capable browser.
Temperature (K) | A | B | C | Reference | Comment |
---|---|---|---|---|---|
382.0 to 567. | 5.444 | 2916.977 | -31.406 | Stull, 1947 | Coefficents calculated by NIST from author's data. |
Enthalpy of fusion
ΔfusH (kcal/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
4.2983 | 269.92 | Chang, Horman, et al., 1967, 2 | DH |
4.300 | 269.9 | Domalski and Hearing, 1996 | AC |
Entropy of fusion
ΔfusS (cal/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
15.92 | 269.92 | Chang, Horman, et al., 1967, 2 | DH |
IR Spectrum
Go To: Top, Phase change data, Mass spectrum (electron ionization), References, Notes
Data compiled by: Coblentz Society, Inc.
Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director
Mass spectrum (electron ionization)
Go To: Top, Phase change 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
Notice: This spectrum may be better viewed with a Javascript and HTML 5 enabled browser.
Additional Data
View image of digitized spectrum (can be printed in landscape orientation).
Due to licensing restrictions, this spectrum cannot be downloaded.
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 |
NIST MS number | 341377 |
References
Go To: Top, Phase change 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.
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, https://doi.org/10.1016/j.jct.2004.07.025
. [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, https://doi.org/10.1139/v80-447
. [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, https://doi.org/10.1002/ps.2780130308
. [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, https://doi.org/10.1246/bcsj.61.3326
. [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]
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, https://doi.org/10.1021/ie50448a022
. [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, https://doi.org/10.1063/1.555985
. [all data]
Notes
Go To: Top, Phase change data, IR Spectrum, Mass spectrum (electron ionization), References
- Symbols used in this document:
Tboil Boiling point Tfus Fusion (melting) point Ttriple Triple point temperature ΔfusH Enthalpy of fusion ΔfusS Entropy of fusion ΔvapH Enthalpy of vaporization ΔvapH° Enthalpy of vaporization at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
- The National Institute of Standards and Technology (NIST) uses its best efforts to deliver a high quality copy of the Database and to verify that the data contained therein have been selected on the basis of sound scientific judgment. However, NIST makes no warranties to that effect, and NIST shall not be liable for any damage that may result from errors or omissions in the Database.
- Customer support for NIST Standard Reference Data products.