Diethyl Phthalate
- Formula: C12H14O4
- Molecular weight: 222.2372
- IUPAC Standard InChI: InChI=1S/C12H14O4/c1-3-15-11(13)9-7-5-6-8-10(9)12(14)16-4-2/h5-8H,3-4H2,1-2H3
- 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
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Gas 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: Donald R. Burgess, Jr.
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔfH°gas | -661.4 | kJ/mol | N/A | Baroody and Carpenter, 1972 | Value computed using ΔfHliquid° value of -753.08 kj/mol from Baroody and Carpenter, 1972 and ΔvapH° value of 91.7±4.6 kj/mol from missing citation. |
| ΔfH°gas | -685. ± 13. | kJ/mol | N/A | Medard and Thomas, 1952 | Value computed using ΔfHliquid° value of -777±12 kj/mol from Medard and Thomas, 1952 and ΔvapH° value of 91.7±4.6 kj/mol from missing citation. |
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 as indicated in comments:
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 |
|---|---|---|---|---|---|
| ΔfH°liquid | -753.08 | kJ/mol | Ccr | Baroody and Carpenter, 1972 | ALS |
| ΔfH°liquid | -777. ± 12. | kJ/mol | Ccb | Medard and Thomas, 1952 | Reanalyzed by Cox and Pilcher, 1970, Original value = -768.2 kJ/mol; Author's hf291_condensed=-189.5 kcal/mol; ALS |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔcH°liquid | -5946. ± 12. | kJ/mol | Ccb | Medard and Thomas, 1952 | Reanalyzed by Cox and Pilcher, 1970, Original value = -5954.7 kJ/mol; Author's hf291_condensed=-189.5 kcal/mol; Corresponding ΔfHºliquid = -776.63 kJ/mol (simple calculation by NIST; no Washburn corrections); ALS |
| ΔcH°liquid | -6073.9 | kJ/mol | Ccb | Ball, 1931 | Corresponding ΔfHºliquid = -648.9 kJ/mol (simple calculation by NIST; no Washburn corrections); ALS |
| ΔcH°liquid | -6077.65 | kJ/mol | Ccb | Ball, 1931 | Corresponding ΔfHºliquid = -645.28 kJ/mol (simple calculation by NIST; no Washburn corrections); ALS |
| Quantity | Value | Units | Method | Reference | Comment |
| S°liquid | 425.08 | J/mol*K | N/A | Chang, Horman, et al., 1967 | DH |
Constant pressure heat capacity of liquid
| Cp,liquid (J/mol*K) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 357.7 | 298.15 | Fuchs, 1979 | DH |
| 366.15 | 298.15 | Chang, Horman, et al., 1967 | T = 10 to 360 K. Glass transition temperature about 180 K. Also data for annealed glass and quenched glass 10 to 170 K.; DH |
Reaction 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: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.
Individual Reactions
+ 218.5
+ 11.25
+
=
+ 13
+ 1.5
By formula: CBrN3O6 + 218.5H2O + 11.25O2 + C12H14O4 = HBr + 13CO2 + 1.5N2
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | -6350.2 ± 1.0 | kJ/mol | Ccr | Carpenter, Zimmer, et al., 1970 | liquid phase; The HBr is in 225H2O |
Gas phase ion energetics 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: John E. Bartmess
Electron affinity determinations
| EA (eV) | Method | Reference | Comment |
|---|---|---|---|
| 0.540014 | ECD | Kuhn, Levins, et al., 1968 | Done at constant temperature, accuracy uncertain: Chen and Wentworth, 1989; |
References
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Reaction thermochemistry data, Gas phase ion energetics data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Baroody and Carpenter, 1972
Baroody, E.E.; Carpenter, G.A.,
Heats of formation of propellant compounds (U), Rpt. Naval Ordnance Systems Command Task No. 331-003/067-1/UR2402-001 for Naval Ordance Station, Indian Head, MD, 1972, 1-9. [all data]
Medard and Thomas, 1952
Medard, L.; Thomas, M.,
Determination des chaleurs de combustion de douze composes organiques utilises dans les poudres et enplosies,
Mem. Poudres, 1952, 34, 421-442. [all data]
Cox and Pilcher, 1970
Cox, J.D.; Pilcher, G.,
Thermochemistry of Organic and Organometallic Compounds, Academic Press, New York, 1970, 1-636. [all data]
Ball, 1931
Ball, A.M.,
Burning characteristics of smokeless powder,
Ind. Eng. Chem., 1931, 23, 498-501. [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 360K,
J. Res., 1967, NBS 71A, 293-305. [all data]
Fuchs, 1979
Fuchs, R.,
Heat capacities of some liquid aliphatic, alicyclic, and aromatic esters at 298.15 K,
J. Chem. Thermodyn., 1979, 11, 959-961. [all data]
Carpenter, Zimmer, et al., 1970
Carpenter, G.A.; Zimmer, M.F.; Baroody, E.E.; Robb, R.A.,
Enthalpy of formation of bromotrinitromethane,
J. Chem. Eng. Data, 1970, 15, 553-556. [all data]
Kuhn, Levins, et al., 1968
Kuhn, W.F.; Levins, R.J.; Lilly, A.C., Jr.,
Electron affinities and ionization potentials of phthalate compounds,
J. Chem. Phys., 1968, 49, 5550. [all data]
Chen and Wentworth, 1989
Chen, E.C.M.; Wentworth, W.E.,
Experimental Determination of Electron Affinities of Organic Molecules,
Mol. Cryst. Liq. Cryst., 1989, 171, 271. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Reaction thermochemistry data, Gas phase ion energetics data, References
- Symbols used in this document:
Cp,liquid Constant pressure heat capacity of liquid EA Electron affinity S°liquid Entropy of liquid at standard conditions ΔcH°liquid Enthalpy of combustion of liquid at standard conditions ΔfH°gas Enthalpy of formation of gas at standard conditions ΔfH°liquid Enthalpy of formation of liquid at standard conditions ΔrH° Enthalpy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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