1,4-Benzenedicarboxylic acid, diethyl ester
- Formula: C12H14O4
- Molecular weight: 222.2372
- IUPAC Standard InChIKey: ONIHPYYWNBVMID-UHFFFAOYSA-N
- CAS Registry Number: 636-09-9
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
The 3d structure may be viewed using Java or Javascript. - Other names: Terephthalic acid, diethyl ester; Diethyl terephthalate; Diethyl ester of 1,4-Benzenedicarboxylic acid; Diethyl p-phthalate
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Condensed phase thermochemistry 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 by: Eugene S. Domalski and Elizabeth D. Hearing
Constant pressure heat capacity of liquid
Cp,liquid (J/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
381. | 320. | Smith and Dole, 1956 | T = 43 to 75°C. Equation only. |
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
BS - Robert L. Brown and Stephen E. Stein
AC - William E. Acree, Jr., James S. Chickos
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 575.15 | K | N/A | Perkin, 1896 | Uncertainty assigned by TRC = 1. K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 317. | K | N/A | Buckingham and Donaghy, 1982 | BS |
Tfus | 316.35 | K | N/A | Perkin, 1896 | Uncertainty assigned by TRC = 0.6 K; TRC |
Reduced pressure boiling point
Tboil (K) | Pressure (bar) | Reference | Comment |
---|---|---|---|
415.2 | 0.003 | Weast and Grasselli, 1989 | BS |
415. | 0.003 | Buckingham and Donaghy, 1982 | BS |
Enthalpy of fusion
ΔfusH (kJ/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
24.69 | 317.2 | Domalski and Hearing, 1996 | AC |
Mass spectrum (electron ionization)
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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 by: NIST Mass Spectrometry Data Center, William E. Wallace, director
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 | Japan AIST/NIMC Database- Spectrum MS-NW-8721 |
NIST MS number | 232614 |
Gas Chromatography
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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 by: NIST Mass Spectrometry Data Center, William E. Wallace, director
Kovats' RI, non-polar column, isothermal
Column type | Active phase | Temperature (C) | I | Reference | Comment |
---|---|---|---|---|---|
Capillary | OV-101 | 230. | 1649. | Friocourt, Berthou, et al., 1979 | 50. m/0.3 mm/0.35 μm, N2 |
Capillary | SE-30 | 251. | 1650. | Friocourt, Berthou, et al., 1979 | 50. m/0.3 mm/0.39 μm, He |
Packed | OV-101 | 150. | 1613. | Delley and Friedrich, 1977 | Gas Chrom Q (80-100 mesh) |
Normal alkane RI, non-polar column, custom temperature program
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | Squalane | 1650. | Chen, 2008 | Program: not specified |
References
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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Smith and Dole, 1956
Smith, C.W.; Dole, M.,
Specific heat of synthetic high polymers. VII. Polyethylene terephthalate,
J. Polym. Sci., 1956, 20, 37-56. [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]
Buckingham and Donaghy, 1982
Buckingham, J.; Donaghy, S.M.,
Dictionary of Organic Compounds: Fifth Edition, Chapman and Hall, New York, 1982, 1. [all data]
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]
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]
Friocourt, Berthou, et al., 1979
Friocourt, M.P.; Berthou, F.; Picart, D.; Dreano, Y.; Floch, H.H.,
Glass Capillary Column Gas Chromatography of Phthalate Esters,
J. Chromatogr., 1979, 172, 1, 261-271, https://doi.org/10.1016/S0021-9673(00)90961-0
. [all data]
Delley and Friedrich, 1977
Delley, R.; Friedrich, K.,
System CG 72 von bevorzugten Trennflüssigkeiten für die Gas-Chromatographie,
Chromatographia, 1977, 10, 10, 593-600, https://doi.org/10.1007/BF02265037
. [all data]
Chen, 2008
Chen, H.-F.,
Quantitative prediction of gas chromatography retention indices with support vector machines, radial basis neutral networks and multiple linear regression,
Anal. Chim. Acta, 2008, 609, 1, 24-36, https://doi.org/10.1016/j.aca.2008.01.003
. [all data]
Notes
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- Symbols used in this document:
Cp,liquid Constant pressure heat capacity of liquid Tboil Boiling point Tfus Fusion (melting) point ΔfusH Enthalpy of fusion - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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