3-Pyridinecarboxylic acid, 1,2-dihydro-2-oxo-
- Formula: C6H5NO3
- Molecular weight: 139.1088
- IUPAC Standard InChI: InChI=1S/C6H5NO3/c8-5-4(6(9)10)2-1-3-7-5/h1-3H,(H,7,8)(H,9,10)
- IUPAC Standard InChIKey: UEYQJQVBUVAELZ-UHFFFAOYSA-N
- CAS Registry Number: 609-71-2
- Chemical structure:
This structure is also available as a 2d Mol file - Other names: 2-Hydroxynicotinic acid; 1,2-dihydro-2-oxonicotinic acid
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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 by: William E. Acree, Jr., James S. Chickos
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔsubH° | 128.3 ± 5.1 | kJ/mol | ME | Santos, Figueira, et al., 2009 | Based on data from 433. - 461. K. |
Enthalpy of sublimation
| ΔsubH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
|---|---|---|---|---|
| 125.4 ± 5.0 | 447. | ME | Santos, Figueira, et al., 2009 | Based on data from 433. - 461. K. |
References
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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Santos, Figueira, et al., 2009
Santos, Rui C.; Figueira, Rita M.B.B.M.; Piedade, M. Fatima M.; Diogo, Herminio P.; Minas da Piedade, Manuel E.,
Energetics and Structure of Hydroxynicotinic Acids. Crystal Structures of 2-, 4-, 6-Hydroxynicotinic and 5-Chloro-6-hydroxynicotinic Acids,
J. Phys. Chem. B, 2009, 113, 43, 14291-14309, https://doi.org/10.1021/jp906908n
. [all data]
Notes
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- Symbols used in this document:
ΔsubH Enthalpy of sublimation ΔsubH° Enthalpy of sublimation at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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