2H-Pyran-2,6(3H)-dione, dihydro-
- Formula: C5H6O3
- Molecular weight: 114.0993
- IUPAC Standard InChI: InChI=1S/C5H6O3/c6-4-2-1-3-5(7)8-4/h1-3H2
- IUPAC Standard InChIKey: VANNPISTIUFMLH-UHFFFAOYSA-N
- CAS Registry Number: 108-55-4
- 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: Glutaric acid anhydride; Glutaric anhydride; Pentanedioic anhydride; Anhydrid kyseliny glutarove; Dihydro-2H-pyran-2,6(3H)-dione
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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
AC - William E. Acree, Jr., James S. Chickos
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔsubH° | 86.1 ± 1.6 | kJ/mol | N/A | Meng-Yan and Pilcher, 1990 | AC |
| ΔsubH° | 86.1 ± 1.6 | kJ/mol | C | Yan and Pilcher, 1990 | ALS |
| ΔsubH° | 86.1 | kJ/mol | N/A | Yan and Pilcher, 1990 | DRB |
Reduced pressure boiling point
| Tboil (K) | Pressure (bar) | Reference | Comment |
|---|---|---|---|
| 423.2 | 0.013 | Weast and Grasselli, 1989 | BS |
| 438. - 443. | 0.027 | Frinton Laboratories Inc., 1986 | BS |
Enthalpy of vaporization
| ΔvapH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
|---|---|---|---|---|
| 60.9 | 388. | A | Stephenson and Malanowski, 1987 | Based on data from 373. - 560. K. See also Stull, 1947.; 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 |
|---|---|---|---|---|---|
| 374.0 - 560. | 5.57029 | 3040.829 | -13.919 | Stull, 1947 | Coefficents calculated by NIST from author's data. |
Enthalpy of sublimation
| ΔsubH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
|---|---|---|---|---|
| 85.9 ± 1.6 | 309. | ME | Meng-Yan and Pilcher, 1990 | Based on data from 298. - 320. K.; AC |
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.
Meng-Yan and Pilcher, 1990
Meng-Yan, Yang; Pilcher, G.,
Enthalpies of combustion of succinic anhydride, glutaric anhydride, and glutarimide,
The Journal of Chemical Thermodynamics, 1990, 22, 9, 893-898, https://doi.org/10.1016/0021-9614(90)90177-R
. [all data]
Yan and Pilcher, 1990
Yan, Y.M.; Pilcher, G.,
Enthalpies of combustion of succinic anhydride, glutaric anhydride, and glutarimide,
J. Chem. Thermodyn., 1990, 22, 893-898. [all data]
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]
Frinton Laboratories Inc., 1986
Frinton Laboratories Inc.,
Catalog Number 11, Frinton Laboratories Inc., Vineland, NJ, 1986, 99. [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]
Notes
Go To: Top, Phase change data, References
- Symbols used in this document:
Tboil Boiling point 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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