Ethyl Acetate
- Formula: C4H8O2
- Molecular weight: 88.1051
- IUPAC Standard InChIKey: XEKOWRVHYACXOJ-UHFFFAOYSA-N
- CAS Registry Number: 141-78-6
- 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: Acetic acid, ethyl ester; Acetic ether; Acetidin; Acetoxyethane; Ethyl acetic ester; Ethyl ethanoate; Vinegar naphtha; CH3COOC2H5; Aethylacetat; Essigester; Ethyle (acetate d'); Etile (acetato di); Ethylacetaat; Ethylester kyseliny octove; Rcra waste number U112; UN 1173; Ethyl ester of acetic acid; 1-Acetoxyethane; NSC 70930; ac. acetic ethyl ester
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Reaction 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:
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias
B - John E. Bartmess
ALS - 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
By formula: C3H9Si+ + C4H8O2 = (C3H9Si+ • C4H8O2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 204. | kJ/mol | PHPMS | Wojtyniak and Stone, 1986 | gas phase; switching reaction,Thermochemical ladder((CH3)3Si+)H2O, Entropy change calculated or estimated; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 131. | J/mol*K | N/A | Wojtyniak and Stone, 1986 | gas phase; switching reaction,Thermochemical ladder((CH3)3Si+)H2O, Entropy change calculated or estimated; M |
Free energy of reaction
ΔrG° (kJ/mol) | T (K) | Method | Reference | Comment |
---|---|---|---|---|
142. | 468. | PHPMS | Wojtyniak and Stone, 1986 | gas phase; switching reaction,Thermochemical ladder((CH3)3Si+)H2O, Entropy change calculated or estimated; M |
By formula: C3H9Sn+ + C4H8O2 = (C3H9Sn+ • C4H8O2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 168. | kJ/mol | PHPMS | Stone and Splinter, 1984 | gas phase; switching reaction((CH3)3Sn+)CH3OH, Entropy change calculated or estimated; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 140. | J/mol*K | N/A | Stone and Splinter, 1984 | gas phase; switching reaction((CH3)3Sn+)CH3OH, Entropy change calculated or estimated; M |
Free energy of reaction
ΔrG° (kJ/mol) | T (K) | Method | Reference | Comment |
---|---|---|---|---|
95.8 | 525. | PHPMS | Stone and Splinter, 1984 | gas phase; switching reaction((CH3)3Sn+)CH3OH, Entropy change calculated or estimated; M |
C4H7O2- + =
By formula: C4H7O2- + H+ = C4H8O2
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1555. ± 17. | kJ/mol | G+TS | Haas, Giblin, et al., 1998 | gas phase; From transesterification equilibria; B |
ΔrH° | 1543. ± 5.0 | kJ/mol | EIAE | Muftakhov, Vasil'ev, et al., 1999 | gas phase; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1527. ± 17. | kJ/mol | IMRE | Haas, Giblin, et al., 1998 | gas phase; From transesterification equilibria; B |
By formula: C4H9O2+ + C4H8O2 = (C4H9O2+ • C4H8O2)
Bond type: Hydrogen bonds of the type OH-O between organics
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 122. | kJ/mol | PHPMS | Szulejko and McMahon, 1991 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 145. | J/mol*K | PHPMS | Szulejko and McMahon, 1991 | gas phase; M |
By formula: NO- + C4H8O2 = (NO- • C4H8O2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 174. | kJ/mol | ICR | Reents and Freiser, 1981 | gas phase; switching reaction,Thermochemical ladder(NO+)C2H5OH, Entropy change calculated or estimated; Farid and McMahon, 1978; M |
By formula: C4H6O2 + H2 = C4H8O2
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -129. ± 4.6 | kJ/mol | Chyd | Vilcu and Perisanu, 1980 | liquid phase; ALS |
ΔrH° | -130.2 ± 0.3 | kJ/mol | Chyd | Dolliver, Gresham, et al., 1938 | gas phase; At 355 °K; ALS |
By formula: C9H16N2O2 + H2O = C4H8O2 + C3H4N2 + C2H6O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -44.69 ± 0.67 | kJ/mol | Cm | Guthrie and Pike, 1987 | liquid phase; Heat of hydrolysis; ALS |
By formula: C4H8O2 + H2O = C2H6O + C2H4O2
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 3.7 ± 0.2 | kJ/mol | Cm | Wadso, 1958 | liquid phase; Heat of hydrolysis; ALS |
By formula: C2H6O + C2H4O2 = C4H8O2 + H2O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 16.6 ± 0.3 | kJ/mol | Eqk | Halford and Brundage, 1942 | gas phase; At 313 K; ALS |
By formula: H2 + C4H8O2 = 2C2H6O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -74.98 ± 0.54 | kJ/mol | Cm | Wiberg, Crocker, et al., 1991 | liquid phase; ALS |
By formula: C2H2O + C2H6O = C4H8O2
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -152.5 | kJ/mol | Cm | Rice and Greenberg, 1934 | gas phase; ALS |
References
Go To: Top, Reaction thermochemistry data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Wojtyniak and Stone, 1986
Wojtyniak, A.C.M.; Stone, A.J.,
A High-Pressure Mass Spectrometric Study of the Bonding of Trimethylsilylium to Oxygen and Aromatic Bases,
Can. J. Chem., 1986, 74, 59. [all data]
Stone and Splinter, 1984
Stone, J.A.; Splinter, D.E.,
A high-pressure mass spectrometric study of the binding of (CH3)3Sn+ to lewis bases in the gas phase,
Int. J. Mass Spectrom. Ion Processes, 1984, 59, 169. [all data]
Haas, Giblin, et al., 1998
Haas, G.W.; Giblin, D.E.; Gross, M.L.,
The Mechanism and Thermodynamics of Transesterification of Acetate-Ester Enolates in the Gas Phase,
Int. J. Mass Spectrom. Ion Proc., 1998, 172, 1-2, 25, https://doi.org/10.1016/S0168-1176(97)83245-4
. [all data]
Muftakhov, Vasil'ev, et al., 1999
Muftakhov, M.V.; Vasil'ev, Y.V.; Mazunov, V.A.,
Determination of electron affinity of carbonyl radicals by means of negative ion mass spectrometry,
Rapid Commun. Mass Spectrom., 1999, 13, 12, 1104-1108, https://doi.org/10.1002/(SICI)1097-0231(19990630)13:12<1104::AID-RCM619>3.0.CO;2-C
. [all data]
Szulejko and McMahon, 1991
Szulejko, J.E.; McMahon, T.B.,
A Pulsed Electron Beam, Variable Temperature, High Pressure Mass Spectrometric Reevaluation of the Proton Affinity Difference Between 2-Methylpropene and Ammonia,
Int. J. Mass Spectrom. Ion Proc., 1991, 109, 279, https://doi.org/10.1016/0168-1176(91)85109-Y
. [all data]
Reents and Freiser, 1981
Reents, W.D.; Freiser, B.S.,
Gas-Phase Binding Energies and Spectroscopic Properties of NO+ Charge-Transfer Complexes,
J. Am. Chem. Soc., 1981, 103, 2791. [all data]
Farid and McMahon, 1978
Farid, R.; McMahon, T.B.,
Gas-Phase Ion-Molecule Reactions of Alkyl Nitrites by Ion Cyclotron Resonance Spectroscopy,
Int. J. Mass Spectrom. Ion Phys., 1978, 27, 2, 163, https://doi.org/10.1016/0020-7381(78)80037-0
. [all data]
Vilcu and Perisanu, 1980
Vilcu, R.; Perisanu, S.,
The ideal gas state enthalpies of formation of some monomers,
Rev. Roum. Chim., 1980, 25, 619-624. [all data]
Dolliver, Gresham, et al., 1938
Dolliver, M.A.; Gresham, T.L.; Kistiakowsky, G.B.; Smith, E.A.; Vaughan, W.E.,
Heats of organic reactions. VI. Heats of hydrogenation of some oxygen-containing compounds,
J. Am. Chem. Soc., 1938, 60, 440-450. [all data]
Guthrie and Pike, 1987
Guthrie, J.P.; Pike, D.C.,
Hydration of acylimidazoles: tetrahedral intermediates in acylimidazole hydrolysis and nucleophilic attack by imidazole on esters. The question of concerted mechanisms for acyl transfers,
Can. J. Chem., 1987, 65, 1951-1969. [all data]
Wadso, 1958
Wadso, I.,
The heats of hydrolysis of some alkyl acetates,
Acta Chem. Scand., 1958, 12, 630-633. [all data]
Halford and Brundage, 1942
Halford, J.O.; Brundage, D.,
The vapor phase esterification equilibrium,
J. Am. Chem. Soc., 1942, 64, 36-40. [all data]
Wiberg, Crocker, et al., 1991
Wiberg, K.B.; Crocker, L.S.; Morgan, K.M.,
Thermochemical studies of carbonyl compounds. 5. Enthalpies of reduction of carbonyl groups,
J. Am. Chem. Soc., 1991, 113, 3447-3450. [all data]
Rice and Greenberg, 1934
Rice, F.O.; Greenberg, J.,
Ketene. III. Heat of formation and heat of reaction with alcohols,
J. Am. Chem. Soc., 1934, 38, 2268-2270. [all data]
Notes
Go To: Top, Reaction thermochemistry data, References
- Symbols used in this document:
T Temperature ΔrG° Free energy of reaction at standard conditions ΔrH° Enthalpy of reaction at standard conditions ΔrS° Entropy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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