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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Condensed phase thermochemistry data
Go To: Top, 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:
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 | -179.99 | kcal/mol | Ccr | Baroody and Carpenter, 1972 | ALS |
| ΔfH°liquid | -185.6 ± 2.8 | kcal/mol | Ccb | Medard and Thomas, 1952 | Reanalyzed by Cox and Pilcher, 1970, Original value = -183.6 kcal/mol; Author's hf291_condensed=-189.5 kcal/mol; ALS |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔcH°liquid | -1421.2 ± 2.8 | kcal/mol | Ccb | Medard and Thomas, 1952 | Reanalyzed by Cox and Pilcher, 1970, Original value = -1423.2 kcal/mol; Author's hf291_condensed=-189.5 kcal/mol; Corresponding ΔfHºliquid = -185.62 kcal/mol (simple calculation by NIST; no Washburn corrections); ALS |
| ΔcH°liquid | -1451.7 | kcal/mol | Ccb | Ball, 1931 | Corresponding ΔfHºliquid = -155.1 kcal/mol (simple calculation by NIST; no Washburn corrections); ALS |
| ΔcH°liquid | -1452.59 | kcal/mol | Ccb | Ball, 1931 | Corresponding ΔfHºliquid = -154.23 kcal/mol (simple calculation by NIST; no Washburn corrections); ALS |
| Quantity | Value | Units | Method | Reference | Comment |
| S°liquid | 101.60 | cal/mol*K | N/A | Chang, Horman, et al., 1967 | DH |
Constant pressure heat capacity of liquid
| Cp,liquid (cal/mol*K) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 85.49 | 298.15 | Fuchs, 1979 | DH |
| 87.512 | 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 |
References
Go To: Top, Condensed phase thermochemistry 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]
Notes
Go To: Top, Condensed phase thermochemistry data, References
- Symbols used in this document:
Cp,liquid Constant pressure heat capacity of liquid S°liquid Entropy of liquid at standard conditions ΔcH°liquid Enthalpy of combustion of liquid at standard conditions ΔfH°liquid Enthalpy of formation of liquid at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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