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Paraldehyde

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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:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
GT - Glushko Thermocenter, Russian Academy of Sciences, Moscow

Quantity Value Units Method Reference Comment
Deltafgas-152.1 ± 0.7kcal/molCcbPihlaja and Tuomi, 1970ALS
Quantity Value Units Method Reference Comment
gas89.5 ± 1.2cal/mol*KN/AClegg G.A., 1969GT

Condensed phase thermochemistry data

Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry 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 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
Deltafliquid-162.96 ± 0.62kcal/molCcbPihlaja and Tuomi, 1970ALS
Quantity Value Units Method Reference Comment
Deltacliquid-811.24 ± 0.62kcal/molCcbPihlaja and Tuomi, 1970Corresponding «DELTA»fliquid = -162.96 kcal/mol (simple calculation by NIST; no Washburn corrections); ALS
Deltacliquid-810.0kcal/molCcbFletcher, Mortimer, et al., 1959Corresponding «DELTA»fliquid = -164.2 kcal/mol (simple calculation by NIST; no Washburn corrections); ALS
Deltacliquid-810.2 ± 0.5kcal/molCcbCass, Springall, et al., 1955Corresponding «DELTA»fliquid = -164.0 kcal/mol (simple calculation by NIST; no Washburn corrections); ALS
Quantity Value Units Method Reference Comment
liquid69.17cal/mol*KN/AClegg and Melia, 1969Extrapolation below 80 K, 61.1 J/mol*K.; DH

Constant pressure heat capacity of liquid

Cp,liquid (cal/mol*K) Temperature (K) Reference Comment
61.50298.15Clegg and Melia, 1969T = 80 to 310 K.; DH
60.71306.6Phillip, 1939DH
59.80298.von Reis, 1881T = 293 to 400 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

3Acetaldehyde = Paraldehyde

By formula: 3C2H4O = C6H12O3

Quantity Value Units Method Reference Comment
Deltar-21. ± 1.kcal/molCmKrasnov, Ozherel'eva, et al., 1983liquid phase; solvent: Nonaqueous; Trimerization
Deltar-23.4kcal/molEqkBusfield, Lee, et al., 1973gas phase

Paraldehyde = 3Acetaldehyde

By formula: C6H12O3 = 3C2H4O

Quantity Value Units Method Reference Comment
Deltar23.4kcal/molEqkBusfield, Lee, et al., 1973gas phase; At 292-313 K

References

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Reaction thermochemistry data, Notes

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

Pihlaja and Tuomi, 1970
Pihlaja, K.; Tuomi, M., Bond-Bond interactions in organic oxygen compounds. Part II. Anomalous stablization in cis-2,4,6-trimethyl-1,3,5-trioxane, Suom. Kemistil., 1970, 43, 224-226. [all data]

Clegg G.A., 1969
Clegg G.A., Thermodynamics of polymerization of heterocyclic compounds. Part IV. The heat capacity, entropy, enthalpy and free energy of paraldehyde, Makromol. Chem., 1969, 123, 194-202. [all data]

Fletcher, Mortimer, et al., 1959
Fletcher, S.E.; Mortimer, C.T.; Springall, H.D., Heats of combustion and molecular structure. Part VII. 1:3-dioxa- and 1:3:5-trioxa-cycloalkanes, J. Chem. Soc., 1959, 580-584. [all data]

Cass, Springall, et al., 1955
Cass, R.C.; Springall, H.D.; White, T.R., The anomalous heat of combustion of paraldehyde, Chem. Ind. (London), 1955, 387-388. [all data]

Clegg and Melia, 1969
Clegg, G.A.; Melia, T.P., Thermodynamics of polymerization of heterocyclic compounds. Part IV. The heat capacity, entropy, enthalpy and free energy of paraldehyde, Makromol. Chem., 1969, 123, 194-202. [all data]

Phillip, 1939
Phillip, N.M., Adiabatic and isothermal compressibilities of liquids, Proc. Indian Acad. Sci., 1939, A9, 109-120. [all data]

von Reis, 1881
von Reis, M.A., Die specifische Wärme flüssiger organischer Verbindungen und ihre Beziehung zu deren Moleculargewicht, Ann. Physik [3], 1881, 13, 447-464. [all data]

Krasnov, Ozherel'eva, et al., 1983
Krasnov, V.L.; Ozherel'eva, N.K.; Trub, E.P.; Tsvetkov, V.G.; Bodrikov, I.V., Trimerization of aldehydes under the action of sulfur dioxide, J. Gen. Chem. USSR, 1983, 53, 2135-2138. [all data]

Busfield, Lee, et al., 1973
Busfield, W.K.; Lee, R.M.; Merifold, D., Gas phase equilibrium between acetaldehyde and paraldehyde, thermodynamic values for the trimerisation of acetaldehyde and the polymerisability of paraldehyde, J. Chem. Soc. Faraday Trans. 1, 1973, 69, 936-940. [all data]


Notes

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