Pyromellitic dianhydride
- Formula: C10H2O6
- Molecular weight: 218.1193
- IUPAC Standard InChIKey: ANSXAPJVJOKRDJ-UHFFFAOYSA-N
- CAS Registry Number: 89-32-7
- 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: 1,2,4,5-Benzenetetracarboxylic anhydride; 1,2,4,5-Benzenetetracarboxylic dianhydride; 1H,3H-Benzo[1,2-c:4,5-c']difuran-1,3,5,7-tetrone; Benzene-1,2:4,5-tetracarboxylic dianhydride; Pyromellitic acid anhydride; Pyromellitic acid dianhydride; Pyromellitic anhydride; 1,2,4,5-Benzenetetracarboxylic 1,2:4,5-dianhydride; NSC 4798; Pyromellitic 1,2:4,5-dianhydride
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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:
BS - Robert L. Brown and Stephen E. Stein
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
DH - Eugene S. Domalski and Elizabeth D. Hearing
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 671.7 | K | N/A | Weast and Grasselli, 1989 | BS |
Quantity | Value | Units | Method | Reference | Comment |
Ttriple | 558.9 | K | N/A | Weinstein, Leffler, et al., 1984 | Crystal phase 1 phase; Uncertainty assigned by TRC = 2. K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔsubH° | 29.23 ± 0.57 | kcal/mol | C | Matos, Miranda, et al., 2007 | AC |
ΔsubH° | 19.93 | kcal/mol | V | Mullayanov, Mukhutdinov, et al., 1967 | ALS |
Enthalpy of vaporization
ΔvapH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
19.0 | 576. | A | Stephenson and Malanowski, 1987 | Based on data from 641. to 665. K.; AC |
Enthalpy of sublimation
ΔsubH (kcal/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
24.00 | 559. | Bagrov, Andreev, et al., 1975 | AC |
Enthalpy of fusion
ΔfusH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
3.781 | 557.2 | N/A | Domalski and Hearing, 1996 | AC |
7.741 | 558.9 | DSC | Weinstein, Leffler, et al., 1984, 2 | AC |
3.7830 | 557.15 | N/A | Marchidan and Ciopec, 1978 | DH |
Entropy of fusion
ΔfusS (cal/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
6.79 | 557.15 | Marchidan and Ciopec, 1978 | DH |
References
Go To: Top, Phase change data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Weast and Grasselli, 1989
CRC Handbook of Data on Organic Compounds, 2nd Editon, Weast,R.C and Grasselli, J.G., ed(s)., CRC Press, Inc., Boca Raton, FL, 1989, 1. [all data]
Weinstein, Leffler, et al., 1984
Weinstein, D.I.; Leffler, A.J.; Currie, J.A.,
Phase Transitions in Bicyclic Compounds,
Mol. Cryst. Liq. Cryst., 1984, 104, 95. [all data]
Matos, Miranda, et al., 2007
Matos, M. Agostinha R.; Miranda, Margarida S.; Monte, Manuel J.S.; Santos, Luís M.N.B.F.; Morais, Victor M.F.; Chickos, James S.; Umnahanant, Patamaporn; Liebman, Joel F.,
Calorimetric and Computational Study of Indanones,
J. Phys. Chem. A, 2007, 111, 43, 11153-11159, https://doi.org/10.1021/jp074718d
. [all data]
Mullayanov, Mukhutdinov, et al., 1967
Mullayanov, F.I.; Mukhutdinov, R.Kh.; Mazitov, M.F.; Buz'ko, M.F.; Borshchenko, V.P.; Krashennikova, V.N.,
Some properties of pyromellitic dianhydride,
Khim. Prom. (Moscow), 1967, 43, 505-506. [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]
Bagrov, Andreev, et al., 1975
Bagrov, G.V.; Andreev, S.N.; Smirnova, M.F.; Vol'f, L.A.,
Deposited Doc. VINITI, 1975, 1196. [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]
Weinstein, Leffler, et al., 1984, 2
Weinstein, D.I.; Leffler, A.J.; Currie, J.A.,
Phase Transitions In Bicyclic Compounds,
Molecular Crystals and Liquid Crystals, 1984, 104, 1-2, 95-109, https://doi.org/10.1080/00268948408070401
. [all data]
Marchidan and Ciopec, 1978
Marchidan, D.I.; Ciopec, M.,
Thermodynamic properties of maleic, trimellitic and pyromellitic anhydrides,
Rev. Roum. Chim., 1978, 23, 19-29. [all data]
Notes
Go To: Top, Phase change data, References
- Symbols used in this document:
Tboil Boiling point Ttriple Triple point temperature ΔfusH Enthalpy of fusion ΔfusS Entropy 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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