Picric acid

• Formula: C₆H₃N₃O₇
• Molecular weight: 229.1039
• IUPAC Standard InChI: InChI=1S/C6H3N3O7/c10-6-4(8(13)14)1-3(7(11)12)2-5(6)9(15)16/h1-2,10H Copy

  
• IUPAC Standard InChIKey: OXNIZHLAWKMVMX-UHFFFAOYSA-N Copy
• 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
• Permanent link for this species. Use this link for bookmarking this species for future reference.
• Information on this page:
  • Condensed phase thermochemistry data
  • IR Spectrum
  • Mass spectrum (electron ionization)
  • References
  • Notes
• Other data available:
  • Phase change data
  • Reaction thermochemistry data
  • Gas phase ion energetics data
• Options:
  • Switch to calorie-based units

Data at NIST subscription sites:

• NIST / TRC Web Thermo Tables, professional edition (thermophysical and thermochemical data)

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.

Condensed phase thermochemistry data

Go To: Top, IR Spectrum, Mass spectrum (electron ionization), 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

Constant pressure heat capacity of solid

IR Spectrum

Go To: Top, Condensed phase thermochemistry data, Mass spectrum (electron ionization), References, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled by: Coblentz Society, Inc.

Spectrum

A digitized version of this spectrum is not currently available.

Additional Data

Mass spectrum (electron ionization)

Go To: Top, Condensed phase thermochemistry data, IR Spectrum, References, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director

Spectrum

Notice: This spectrum may be better viewed with a Javascript and HTML 5 enabled browser.

For Zoom

1.) Enter the desired X axis range (e.g., 100, 200)

2.) Check here for automatic Y scaling

3.) Press here to zoom

Additional Data

References

Go To: Top, Condensed phase thermochemistry data, IR Spectrum, Mass spectrum (electron ionization), 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, IR Spectrum, Mass spectrum (electron ionization), 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
• 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.