Picric acid
- Formula: C6H3N3O7
- Molecular weight: 229.1039
- IUPAC Standard InChIKey: OXNIZHLAWKMVMX-UHFFFAOYSA-N
- CAS Registry Number: 88-89-1
- 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: Phenol, 2,4,6-trinitro-; C.I. 10305; Carbazotic Acid; Melinite; Nitroxanthic acid; Picral; Picronitric acid; Trinitrophenol; 2,4,6-Trinitrophenol; Acide picrique; Acido picrico; Phenol trinitrate; Pikrinezuur; Pikrinsaeure; Pikrynowy kwas; 1,3,5-Trinitrophenol; 2-Hydroxy-1,3,5-trinitrobenzene; 2,4,6-Trinitrofenol; 2,4,6-Trinitrofenolo; Kyselina pikrova; UN 0154; 2,4,6-Trinitrophenyl; Hager's reagent; Pertite; Reflorit; NSC 36947
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Condensed phase thermochemistry 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:
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 |
---|---|---|---|---|---|
ΔfH°solid | -52.07 ± 0.48 | kcal/mol | Ccb | Finch and Smith, 1983 | ALS |
ΔfH°solid | -51.14 ± 0.32 | kcal/mol | Ccb | Vorob'yov, Privalova, et al., 1960 | ALS |
ΔfH°solid | -53.76 | kcal/mol | Ccb | Rinkenbach, 1930 | Author hf298_condensed[kcal/mol]=-55.98; ALS |
Quantity | Value | Units | Method | Reference | Comment |
ΔcH°solid | -615. ± 7. | kcal/mol | AVG | N/A | Average of 8 values; Individual data points |
Constant pressure heat capacity of solid
Cp,solid (cal/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
57.29 | 293. | Taylor and Rinkenbach, 1924 | T = 90 to 395 K.; DH |
References
Go To: Top, Condensed phase thermochemistry data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Finch and Smith, 1983
Finch, A.; Smith, A.E.,
Thermochemistry of nitrophenols. V. Enthalpies of formation of 2,4- and 2,6-dinitrophenols,
Thermochim. Acta, 1983, 69, 375-378. [all data]
Vorob'yov, Privalova, et al., 1960
Vorob'yov, A.F.; Privalova, N.M.; Storozhenko, L.V.; Skuratov, S.M.,
Standard enthalpies of formation of some picrates,
Dokl. Akad. Nauk SSSR, 1960, 135, 1131-1132. [all data]
Rinkenbach, 1930
Rinkenbach, W.H.,
The heats of combustion and formation of aromatic nitro compounds,
J. Am. Chem. Soc., 1930, 52, 115-120. [all data]
Taylor and Rinkenbach, 1924
Taylor, C.A.; Rinkenbach, W.H.,
The specific heats of trinitrotoluene, tetryl, picric acid and their molecular complexes,
J. Am. Chem. Soc., 1924, 46, 1504-1510. [all data]
Notes
Go To: Top, Condensed phase thermochemistry data, References
- Symbols used in this document:
Cp,solid Constant pressure heat capacity of solid ΔcH°solid Enthalpy of combustion of solid at standard conditions ΔfH°solid Enthalpy of formation of solid at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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