Isopropyl acetate

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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 as indicated in comments:
DRB - Donald R. Burgess, Jr.
GT - Glushko Thermocenter, Russian Academy of Sciences, Moscow

Quantity Value Units Method Reference Comment
Δfgas-489.7 ± 3.7kJ/molN/AButwill and Rockenfeller, 1970Value computed using ΔfHliquid° value of -526.9±3.7 kj/mol from Butwill and Rockenfeller, 1970 and ΔvapH° value of 37.2±0.2 kj/mol from missing citation.; DRB

Constant pressure heat capacity of gas

Cp,gas (J/mol*K) Temperature (K) Reference Comment
154.31 ± 0.23361.35von Geiseler G., 1973GT
158.99 ± 0.24376.91
163.59 ± 0.25392.36
168.95 ± 0.25411.00

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
Δfliquid-526.9 ± 3.7kJ/molCcbButwill and Rockenfeller, 1970ALS
Quantity Value Units Method Reference Comment
Δcliquid-2869.8 ± 4.1kJ/molCcbButwill and Rockenfeller, 1970Corresponding Δfliquid = -526.85 kJ/mol (simple calculation by NIST; no Washburn corrections); ALS
Δcliquid-2879.kJ/molCcbSchjanberg, 1935Corresponding Δfliquid = -517.1 kJ/mol (simple calculation by NIST; no Washburn corrections); ALS

Constant pressure heat capacity of liquid

Cp,liquid (J/mol*K) Temperature (K) Reference Comment
196.6298.15Fuchs, 1979DH

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
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Quantity Value Units Method Reference Comment
Tboil362. ± 3.KAVGN/AAverage of 13 values; Individual data points
Quantity Value Units Method Reference Comment
Tfus241.85KN/ATimmermans, 1952Uncertainty assigned by TRC = 0.5 K; TRC
Tfus346.6KN/ATimmermans, 1922Uncertainty assigned by TRC = 0.5 K; TRC
Quantity Value Units Method Reference Comment
Tc532.0KN/AQuadri and Kudchadker, 1991Uncertainty assigned by TRC = 0.6 K; TRC
Tc531.KN/AAmbrose, Ellender, et al., 1981Uncertainty assigned by TRC = 0.05 K; Visual, PRT, IPTS-68, PP.; TRC
Quantity Value Units Method Reference Comment
Pc32.90barN/AQuadri and Kudchadker, 1991Uncertainty assigned by TRC = 0.20 bar; TRC
Quantity Value Units Method Reference Comment
Δvap37.0kJ/molCGCChickos, Hosseini, et al., 1995Based on data from 313. to 353. K.; AC
Δvap37.2 ± 0.2kJ/molCWadsö, Murto, et al., 1966AC
Δvap37.2 ± 0.2kJ/molCWadso, 1966ALS
Δvap33.kJ/molESchjanberg, 1935ALS

Enthalpy of vaporization

ΔvapH (kJ/mol) Temperature (K) Method Reference Comment
38.8250.AStephenson and Malanowski, 1987Based on data from 235. to 362. K. See also Stull, 1947.; AC
35.6323.CGeiseler, Quitzsch, et al., 1973AC
36.3288.AHaggerty and Weiler, 1929Based on data from 273. to 363. K.; AC

Antoine Equation Parameters

log10(P) = A − (B / (T + C))
    P = vapor pressure (bar)
    T = temperature (K)

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Temperature (K) A B C Reference Comment
234.9 to 362.4.551721490.877-34.098Stull, 1947Coefficents calculated by NIST from author's data.

In addition to the Thermodynamics Research Center (TRC) data available from this site, much more physical and chemical property data is available from the following TRC products:


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 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

C3H9Si+ + Isopropyl acetate = (C3H9Si+ • Isopropyl acetate)

By formula: C3H9Si+ + C5H10O2 = (C3H9Si+ • C5H10O2)

Quantity Value Units Method Reference Comment
Δr210.kJ/molPHPMSWojtyniak and Stone, 1986gas phase; switching reaction,Thermochemical ladder((CH3)3Si+)H2O, Entropy change calculated or estimated; M
Quantity Value Units Method Reference Comment
Δr132.J/mol*KN/AWojtyniak and Stone, 1986gas 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
149.468.PHPMSWojtyniak and Stone, 1986gas phase; switching reaction,Thermochemical ladder((CH3)3Si+)H2O, Entropy change calculated or estimated; M

C3H9Sn+ + Isopropyl acetate = (C3H9Sn+ • Isopropyl acetate)

By formula: C3H9Sn+ + C5H10O2 = (C3H9Sn+ • C5H10O2)

Quantity Value Units Method Reference Comment
Δr175.kJ/molPHPMSStone and Splinter, 1984gas phase; switching reaction((CH3)3Sn+)CH3OH, Entropy change calculated or estimated; M
Quantity Value Units Method Reference Comment
Δr140.J/mol*KN/AStone and Splinter, 1984gas phase; switching reaction((CH3)3Sn+)CH3OH, Entropy change calculated or estimated; M

Free energy of reaction

ΔrG° (kJ/mol) T (K) Method Reference Comment
101.525.PHPMSStone and Splinter, 1984gas phase; switching reaction((CH3)3Sn+)CH3OH, Entropy change calculated or estimated; M

C5H9O2- + Hydrogen cation = Isopropyl acetate

By formula: C5H9O2- + H+ = C5H10O2

Quantity Value Units Method Reference Comment
Δr1556. ± 17.kJ/molG+TSHaas, Giblin, et al., 1998gas phase; From transesterification equilibria; B
Quantity Value Units Method Reference Comment
Δr1528. ± 17.kJ/molIMREHaas, Giblin, et al., 1998gas phase; From transesterification equilibria; B

CH6N+ + Isopropyl acetate = (CH6N+ • Isopropyl acetate)

By formula: CH6N+ + C5H10O2 = (CH6N+ • C5H10O2)

Bond type: Hydrogen bonds of the type NH+-O between organics

Quantity Value Units Method Reference Comment
Δr126.kJ/molPHPMSMeot-Ner, 1984gas phase; M
Quantity Value Units Method Reference Comment
Δr147.J/mol*KPHPMSMeot-Ner, 1984gas phase; M

Isopropyl acetate + Water = Acetic acid + Isopropyl Alcohol

By formula: C5H10O2 + H2O = C2H4O2 + C3H8O

Quantity Value Units Method Reference Comment
Δr2.3 ± 0.2kJ/molCmWadso, 1958liquid phase; Heat of Hydrolysis; ALS

Ketene + Isopropyl Alcohol = Isopropyl acetate

By formula: C2H2O + C3H8O = C5H10O2

Quantity Value Units Method Reference Comment
Δr-150.2kJ/molCmRice and Greenberg, 1934liquid phase; ALS

Gas phase ion energetics data

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Ion clustering data, References, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data evaluated as indicated in comments:
HL - Edward P. Hunter and Sharon G. Lias
L - Sharon G. Lias

Data compiled as indicated in comments:
B - John E. Bartmess
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron

Quantity Value Units Method Reference Comment
IE (evaluated)9.99 ± 0.03eVN/AN/AL
Quantity Value Units Method Reference Comment
Proton affinity (review)836.6kJ/molN/AHunter and Lias, 1998HL
Quantity Value Units Method Reference Comment
Gas basicity805.6kJ/molN/AHunter and Lias, 1998HL

Ionization energy determinations

IE (eV) Method Reference Comment
9.95 ± 0.05PEBenoit, Harrison, et al., 1977LLK
10.08PESweigart and Turner, 1972LLK
9.99 ± 0.03PIWatanabe, Nakayama, et al., 1962RDSH

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
C2H5O2+9.96 ± 0.05CH2=CHCH2EIBenoit, Harrison, et al., 1977LLK
C2H5O2+10.4 ± 0.1?EIHarrison and Jones, 1965RDSH
C3H7+11.12 ± 0.08?EIBrion and Dunning, 1963RDSH
C3H7O+10.65CH3COEIHarrison, Ivko, et al., 1966RDSH
C4H7O2+11.34 ± 0.07CH3EIBrion and Dunning, 1963RDSH

De-protonation reactions

C5H9O2- + Hydrogen cation = Isopropyl acetate

By formula: C5H9O2- + H+ = C5H10O2

Quantity Value Units Method Reference Comment
Δr1556. ± 17.kJ/molG+TSHaas, Giblin, et al., 1998gas phase; From transesterification equilibria; B
Quantity Value Units Method Reference Comment
Δr1528. ± 17.kJ/molIMREHaas, Giblin, et al., 1998gas phase; From transesterification equilibria; B

Ion clustering data

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, 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: Michael M. Meot-Ner (Mautner) and Sharon G. Lias

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. Searches may be limited to ion clustering reactions. A general reaction search form is also available.

Clustering reactions

CH6N+ + Isopropyl acetate = (CH6N+ • Isopropyl acetate)

By formula: CH6N+ + C5H10O2 = (CH6N+ • C5H10O2)

Bond type: Hydrogen bonds of the type NH+-O between organics

Quantity Value Units Method Reference Comment
Δr126.kJ/molPHPMSMeot-Ner, 1984gas phase
Quantity Value Units Method Reference Comment
Δr147.J/mol*KPHPMSMeot-Ner, 1984gas phase

C3H9Si+ + Isopropyl acetate = (C3H9Si+ • Isopropyl acetate)

By formula: C3H9Si+ + C5H10O2 = (C3H9Si+ • C5H10O2)

Quantity Value Units Method Reference Comment
Δr210.kJ/molPHPMSWojtyniak and Stone, 1986gas phase; switching reaction,Thermochemical ladder((CH3)3Si+)H2O, Entropy change calculated or estimated
Quantity Value Units Method Reference Comment
Δr132.J/mol*KN/AWojtyniak and Stone, 1986gas phase; switching reaction,Thermochemical ladder((CH3)3Si+)H2O, Entropy change calculated or estimated

Free energy of reaction

ΔrG° (kJ/mol) T (K) Method Reference Comment
149.468.PHPMSWojtyniak and Stone, 1986gas phase; switching reaction,Thermochemical ladder((CH3)3Si+)H2O, Entropy change calculated or estimated

C3H9Sn+ + Isopropyl acetate = (C3H9Sn+ • Isopropyl acetate)

By formula: C3H9Sn+ + C5H10O2 = (C3H9Sn+ • C5H10O2)

Quantity Value Units Method Reference Comment
Δr175.kJ/molPHPMSStone and Splinter, 1984gas phase; switching reaction((CH3)3Sn+)CH3OH, Entropy change calculated or estimated
Quantity Value Units Method Reference Comment
Δr140.J/mol*KN/AStone and Splinter, 1984gas phase; switching reaction((CH3)3Sn+)CH3OH, Entropy change calculated or estimated

Free energy of reaction

ΔrG° (kJ/mol) T (K) Method Reference Comment
101.525.PHPMSStone and Splinter, 1984gas phase; switching reaction((CH3)3Sn+)CH3OH, Entropy change calculated or estimated

References

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, Ion clustering data, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Butwill and Rockenfeller, 1970
Butwill, M.E.; Rockenfeller, J.D., Heats of combustion and formation of ethyl acetate and isopropyl acetate, Thermochim. Acta, 1970, 1, 289-295. [all data]

von Geiseler G., 1973
von Geiseler G., The heat capacity and the heat of vaporization of isomeric butylmethylketones and propylacetates, Z. Phys. Chem. (Leipzig), 1973, 252, 170-176. [all data]

Schjanberg, 1935
Schjanberg, E., Die Verbrennungswarmen und die Refraktionsdaten einiger chlorsubstituierter Fettsauren und Ester., Z. Phys. Chem. Abt. A, 1935, 172, 197-233. [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]

Timmermans, 1952
Timmermans, J., Freezing points of organic compounds. VVI New determinations., Bull. Soc. Chim. Belg., 1952, 61, 393. [all data]

Timmermans, 1922
Timmermans, J., Investigation of the Freezing Point of Organic Substances VII, Bull. Soc. Chim. Belg., 1922, 31, 389. [all data]

Quadri and Kudchadker, 1991
Quadri, S.K.; Kudchadker, A.P., Measurement of the critical temperatures and critical pressures of some thermally stable or mildly unstable esters, ketones, and ethers, J. Chem. Thermodyn., 1991, 23, 129-34. [all data]

Ambrose, Ellender, et al., 1981
Ambrose, D.; Ellender, J.H.; Gundry, H.A.; Lee, D.A.; Townsend, R., Thermodynamic properties of organic oxygen compounds. LI. The vapour pressures of some esters and fatty acids, J. Chem. Thermodyn., 1981, 13, 795. [all data]

Chickos, Hosseini, et al., 1995
Chickos, James S.; Hosseini, Sarah; Hesse, Donald G., Determination of vaporization enthalpies of simple organic molecules by correlations of changes in gas chromatographic net retention times, Thermochimica Acta, 1995, 249, 41-62, https://doi.org/10.1016/0040-6031(95)90670-3 . [all data]

Wadsö, Murto, et al., 1966
Wadsö, Ingemar; Murto, Maija-Leena; Bergson, Göran; Ehrenberg, L.; Brunvoll, J.; Bunnenberg, E.; Djerassi, Carl; Records, Ruth, Heats of Vaporization for a Number of Organic Compounds at 25 degrees C., Acta Chem. Scand., 1966, 20, 544-552, https://doi.org/10.3891/acta.chem.scand.20-0544 . [all data]

Wadso, 1966
Wadso, I., Acta Chem. Scand., 1966, 20, 544. [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]

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]

Geiseler, Quitzsch, et al., 1973
Geiseler, G.; Quitzsch, K.; Hofmann, H.-P.; Pfestorf, R.Z., Z. Phys. Chem. (Leipzig), 1973, 252, 170. [all data]

Haggerty and Weiler, 1929
Haggerty, Cecil J.; Weiler, Joseph F., THE VAPOR PRESSURE OF ISOPROPYL ACETATE 1, J. Am. Chem. Soc., 1929, 51, 6, 1623-1626, https://doi.org/10.1021/ja01381a001 . [all data]

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]

Meot-Ner, 1984
Meot-Ner, (Mautner)M., The Ionic Hydrogen Bond and Ion Solvation. 1. -NH+ O-, -NH+ N- and -OH+ O- Bonds. Correlations with Proton Affinity. Deviations Due to Structural Effects, J. Am. Chem. Soc., 1984, 106, 5, 1257, https://doi.org/10.1021/ja00317a015 . [all data]

Wadso, 1958
Wadso, I., The heats of hydrolysis of some alkyl acetates, Acta Chem. Scand., 1958, 12, 630-633. [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]

Hunter and Lias, 1998
Hunter, E.P.; Lias, S.G., Evaluated Gas Phase Basicities and Proton Affinities of Molecules: An Update, J. Phys. Chem. Ref. Data, 1998, 27, 3, 413-656, https://doi.org/10.1063/1.556018 . [all data]

Benoit, Harrison, et al., 1977
Benoit, F.M.; Harrison, A.G.; Lossing, F.P., Hydrogen migrations in mass spectrometry III-Energetics of formation of [R'CO2H2]+ in the mass spectra of R'CO2R, Org. Mass Spectrom., 1977, 12, 78. [all data]

Sweigart and Turner, 1972
Sweigart, D.A.; Turner, D.W., Lone pair orbitals and their interactions studied by photoelectron spectroscopy. I. Carboxylic acids and their derivatives, J. Am. Chem. Soc., 1972, 94, 5592. [all data]

Watanabe, Nakayama, et al., 1962
Watanabe, K.; Nakayama, T.; Mottl, J., Ionization potentials of some molecules, J. Quant. Spectry. Radiative Transfer, 1962, 2, 369. [all data]

Harrison and Jones, 1965
Harrison, A.G.; Jones, E.G., Rearrangement reactions following electron impact on ethyl and isopropyl esters, Can. J. Chem., 1965, 43, 960. [all data]

Brion and Dunning, 1963
Brion, C.E.; Dunning, W.J., Electron impact studies of simple carboxylic esters, J. Chem. Soc. Faraday Trans., 1963, 59, 647. [all data]

Harrison, Ivko, et al., 1966
Harrison, A.G.; Ivko, A.; Van Raalte, D., Energetics of formation of some oxygenated ions and the proton affinities of carbonyl compounds, Can. J. Chem., 1966, 44, 1625. [all data]


Notes

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, Ion clustering data, References