Benzoic acid, 2-amino-
- Formula: C7H7NO2
- Molecular weight: 137.1360
- IUPAC Standard InChIKey: RWZYAGGXGHYGMB-UHFFFAOYSA-N
- CAS Registry Number: 118-92-3
- 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: Anthranilic acid; o-Aminobenzoic acid; o-Carboxyaniline; 2-Aminobenzoic acid; 2-Carboxyaniline; NCI-C01730; 1-Amino-2-carboxybenzene; o-Anthranilic acid; Benzoic acid, o-amino-; Kyselina o-aminobenzoova; Kyselina anthranilova; ortho-Aminobenzoic acid; Vitamin L1; NSC 144
- Permanent link for this species. Use this link for bookmarking this species for future reference.
- Information on this page:
- Other data available:
- Data at other public NIST sites:
- Options:
Data at NIST subscription sites:
NIST subscription sites provide data under the NIST Standard Reference Data Program, but require an annual fee to access. The purpose of the fee is to recover costs associated with the development of data collections included in such sites. Your institution may already be a subscriber. Follow the links above to find out more about the data in these sites and their terms of usage.
Phase change data
Go To: Top, 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
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
AC - William E. Acree, Jr., James S. Chickos
DH - Eugene S. Domalski and Elizabeth D. Hearing
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tfus | 417.8 | K | N/A | Andrews, Lynn, et al., 1926 | Uncertainty assigned by TRC = 0.5 K; with possible decomposition; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔsubH° | 104.9 ± 1.0 | kJ/mol | V | Nabavian, Sabbah, et al., 1977 | Author was aware that data differs from previously reported values; ALS |
ΔsubH° | 104.9 ± 1.0 | kJ/mol | V | Sabbah, Chastelet, et al., 1974 | ALS |
ΔsubH° | 111.6 ± 1.7 | kJ/mol | N/A | Arnold and Jones, 1972 | AC |
Enthalpy of fusion
ΔfusH (kJ/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
20.5 | 417.8 | Acree, 1991 | AC |
20.380 | 417.8 | Andrews, Lynn, et al., 1926, 2 | DH |
Entropy of fusion
ΔfusS (J/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
48.8 | 417.8 | Andrews, Lynn, et al., 1926, 2 | 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.
Andrews, Lynn, et al., 1926
Andrews, D.H.; Lynn, G.; Johnston, J.,
The Heat Capacities and Heat of Crystallization of Some Isomeric Aromatic Compounds,
J. Am. Chem. Soc., 1926, 48, 1274. [all data]
Nabavian, Sabbah, et al., 1977
Nabavian, P.M.; Sabbah, R.; Chastel, R.; Laffitte, M.,
Thermodynamique de composes azotes. II. Etude thermochimique des acides aminobenzoiques, de la pyrimidine, de l'uracile et de la thymine.,
J. Chim. Phys., 1977, 74, 115-126. [all data]
Sabbah, Chastelet, et al., 1974
Sabbah, R.; Chastelet, R.; Laffitte, M.,
Thermodynamic de composès azotes. I. Etude calorimètrique des enthalpies de sublimation des trios acides aminobenzoïques,
Can. J. Chem., 1974, 52, 2201. [all data]
Arnold and Jones, 1972
Arnold, P.R.; Jones, F.,
Polymorphism in Anthranilic Acid Crystals---Examination by DTA and DSC,
Molecular Crystals and Liquid Crystals, 1972, 19, 2, 133-140, https://doi.org/10.1080/15421407208083859
. [all data]
Acree, 1991
Acree, William E.,
Thermodynamic properties of organic compounds: enthalpy of fusion and melting point temperature compilation,
Thermochimica Acta, 1991, 189, 1, 37-56, https://doi.org/10.1016/0040-6031(91)87098-H
. [all data]
Andrews, Lynn, et al., 1926, 2
Andrews, D.H.; Lynn, G.; Johnston, J.,
The heat capacities and heat of crystallization of some isomeric aromatic compounds,
J. Am. Chem. Soc., 1926, 48, 1274-1287. [all data]
Notes
Go To: Top, Phase change data, References
- Symbols used in this document:
Tfus Fusion (melting) point ΔfusH Enthalpy of fusion ΔfusS Entropy of fusion ΔsubH° Enthalpy of sublimation at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
- The National Institute of Standards and Technology (NIST) uses its best efforts to deliver a high quality copy of the Database and to verify that the data contained therein have been selected on the basis of sound scientific judgment. However, NIST makes no warranties to that effect, and NIST shall not be liable for any damage that may result from errors or omissions in the Database.
- Customer support for NIST Standard Reference Data products.