p-Diacetylbenzene diethyl ketal
- Formula: C18H30O4
- Molecular weight: 310.4284
- IUPAC Standard InChIKey: OKYWFWIKJZITQH-UHFFFAOYSA-N
- CAS Registry Number: 47189-08-2
- Chemical structure:
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Gas phase thermochemistry data
Go To: Top, Phase change 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: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°gas | -189.7 ± 2.2 | kcal/mol | Ccb | Karyakin, Sapozhnikov, et al., 1978 | see Karyakin, Sapozhnikov, et al., 1977 |
Phase change data
Go To: Top, Gas phase 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:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.
DH - Eugene S. Domalski and Elizabeth D. Hearing
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Ttriple | 326.61 | K | N/A | Karyakin, Rabinovich, et al., 1978 | Crystal phase 1 phase; Uncertainty assigned by TRC = 0.02 K; TRC |
Ttriple | 326.21 | K | N/A | Karyakin, Sapozhnikov, et al., 1977, 2 | Crystal phase 1 phase; Uncertainty assigned by TRC = 0.01 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔsubH° | 26.82 ± 0.48 | kcal/mol | V | Karyakin, Sapozhnikov, et al., 1978 | see Karyakin, Sapozhnikov, et al., 1977; ALS |
ΔsubH° | 26.82 | kcal/mol | N/A | Karyakin, Sapozhnikov, et al., 1978 | DRB |
Enthalpy of vaporization
ΔvapH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
21.2 | 338. | A | Stephenson and Malanowski, 1987 | Based on data from 329. to 347. K.; AC |
Enthalpy of sublimation
ΔsubH (kcal/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
26.89 | 316.5 | Karyakin, Kamelova, et al., 1978 | Based on data from 306. to 327. K. See also Stephenson and Malanowski, 1987.; AC |
Enthalpy of fusion
ΔfusH (kcal/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
5.62 | 326.2 | Domalski and Hearing, 1996 | AC |
Enthalpy of phase transition
ΔHtrs (kcal/mol) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
---|---|---|---|---|---|
0.3124 | 168.24 | crystaline, II | crystaline, I | Karyakin, Rabinovich, et al., 1978 | DH |
5.6166 | 326.61 | crystaline, I | liquid | Karyakin, Rabinovich, et al., 1978 | DH |
0.3124 | 168.2 | crystaline, II | crystaline, I | Karyakin, Sapozhnikov, et al., 1978, 2 | DH |
5.6166 | 326.21 | crystaline, I | liquid | Karyakin, Sapozhnikov, et al., 1978, 2 | DH |
0.3119 | 168.2 | crystaline, II | crystaline, I | Karyakin, Sapozhnikov, et al., 1977 | DH |
5.6171 | 326.21 | crystaline, I | liquid | Karyakin, Sapozhnikov, et al., 1977 | Sm = 23502/326.21 = 72.0 J/mol*K.; DH |
Entropy of phase transition
ΔStrs (cal/mol*K) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
---|---|---|---|---|---|
1.95 | 168.24 | crystaline, II | crystaline, I | Karyakin, Rabinovich, et al., 1978 | DH |
17.20 | 326.61 | crystaline, I | liquid | Karyakin, Rabinovich, et al., 1978 | DH |
1.95 | 168.2 | crystaline, II | crystaline, I | Karyakin, Sapozhnikov, et al., 1978, 2 | DH |
17.22 | 326.21 | crystaline, I | liquid | Karyakin, Sapozhnikov, et al., 1978, 2 | DH |
2.0 | 168.2 | crystaline, II | crystaline, I | Karyakin, Sapozhnikov, et al., 1977 | DH |
References
Go To: Top, Gas phase thermochemistry data, Phase change data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Karyakin, Sapozhnikov, et al., 1978
Karyakin, N.V.; Sapozhnikov, V.N.; Teplyakov, M.M.; Chebotarev, V.P.,
The thermodynamics of polycondensation of the ethyl ketals of acetophenone and ρ-diacetylbenzene,
Polym. Sci. USSR, 1978, 20, 2191-2199. [all data]
Karyakin, Sapozhnikov, et al., 1977
Karyakin, N.V.; Sapozhnikov, V.N.; Teplyakov, M.M.; Chebotarev, V.P.,
Thermodynamics of the synthesis of polyphenylene based on ethyl ketals of acetophenone and p-diacetylbenzene,
Dokl. Phys. Chem. (Engl. Transl.), 1977, 237, 867-870. [all data]
Karyakin, Rabinovich, et al., 1978
Karyakin, N.V.; Rabinovich, I.B.; Nistratov, V.P.,
Heat capacity and thermodynamic functions of p-diacetylbenzene diethyl ketal,
Termodin. Org. Soedin., 1978, (7), 12-16. [all data]
Karyakin, Sapozhnikov, et al., 1977, 2
Karyakin, N.V.; Sapozhnikov, V.N.; Teplyakov, M.M.; Chebotarev, V.P.,
Thermodynamics of the synthesis of polyphenylene based on acetophenone and p-diacetylbenzene diethyl acetals,
Dokl. Akad. Nauk SSSR, 1977, 237, 867-70. [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]
Karyakin, Kamelova, et al., 1978
Karyakin, N.V.; Kamelova, G.P.; Sapozhnikov, V.N.,
Termodin. Org. Soedin., 1978, 7, 52. [all data]
Domalski and Hearing, 1996
Domalski, Eugene S.; Hearing, Elizabeth D.,
Heat Capacities and Entropies of Organic Compounds in the Condensed Phase. Volume III,
J. Phys. Chem. Ref. Data, 1996, 25, 1, 1, https://doi.org/10.1063/1.555985
. [all data]
Karyakin, Sapozhnikov, et al., 1978, 2
Karyakin, N.V.; Sapozhnikov, V.N.; Teplyakov, M.M.; Chebotarev, V.P.,
The thermodynamics of polycondensation of the ethyl ketals of acetophenone and p-diacetylbenzene,
Vysokomol. Soedin., 1978, A20, 1950-1956. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Phase change data, References
- Symbols used in this document:
Ttriple Triple point temperature ΔHtrs Enthalpy of phase transition ΔStrs Entropy of phase transition ΔfH°gas Enthalpy of formation of gas at standard conditions ΔfusH Enthalpy of fusion ΔsubH Enthalpy of sublimation ΔsubH° Enthalpy of sublimation at standard conditions ΔvapH Enthalpy of vaporization - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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