Benzeneacetic acid, α-phenyl-

• Formula: C₁₄H₁₂O₂
• Molecular weight: 212.2439
• IUPAC Standard InChI: InChI=1S/C14H12O2/c15-14(16)13(11-7-3-1-4-8-11)12-9-5-2-6-10-12/h1-10,13H,(H,15,16) Copy

  
• IUPAC Standard InChIKey: PYHXGXCGESYPCW-UHFFFAOYSA-N Copy
• CAS Registry Number: 117-34-0
• 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: Acetic acid, diphenyl-; α-Toluic acid, α-phenyl-; Diphenylacetic acid; Diphenylethanoic acid; α,α-Diphenylacetic acid; DPA
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• Information on this page:
  • Phase change data
  • References
  • Notes
• Other data available:
  • Mass spectrum (electron ionization)
• Data at other public NIST sites:
  • Gas Phase Kinetics Database
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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:
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

Enthalpy of fusion

Enthalpy of phase transition

Entropy of phase transition

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.

Anonymous, 1988
Anonymous, X., , NBS Spec. Publ. (U. S.) 260, 1988. [all data]

Marsh, 1987
Marsh, K.N., Recommended Reference Materials for the Realization of Physicochemical Properties, Blackwell Sci. Pub., Oxford, 1987. [all data]

Smith, Alderman, et al., 1949
Smith, H.A.; Alderman, D.M.; Shacklett, C.D.; Welch, C.M., The Catalytic Hydrogenation of the Benzene Nucleus VI. The Hydrogenation of Compounds with Two Benzene Rings, J. Am. Chem. Soc., 1949, 71, 3772. [all data]

Barnes and McElvain, 1937
Barnes, H.M.; McElvain, S.M., Further Observations on the Condensation of Benzene with Alloxan, J. Am. Chem. Soc., 1937, 59, 2348-51. [all data]

Andon and Connett, 1980
Andon, R.J.L.; Connett, J.E., Calibrants for thermal analysis. measurement of their enthalpies of fusion by adiabatic calorimetry., Thermochim. Acta, 1980, 42, 241. [all data]

Glaser and Ruland, 1957
Glaser, F.; Ruland, H., Untersuchungsen über dampfdruckkurven und kritische daten einiger technisch wichtiger organischer substanzen, Chem. Ing. Techn., 1957, 29, 772. [all data]

Charsley, Laye, et al., 2010
Charsley, E.L.; Laye, P.G.; Markham, H.M.; Le Goff, T., Calibration of differential scanning calorimeters: A comparison between indium and diphenylacetic acid, Thermochimica Acta, 2010, 497, 1-2, 72-76, https://doi.org/10.1016/j.tca.2009.08.010 . [all data]

Domalski and Hearing, 1996
Domalski, Eugene S.; Hearing, Elizabeth D., Heat Capacities and Entropies of Organic Compounds in the Condensed Phase. Volume III, J. Phys. Chem. Ref. Data, 1996, 25, 1, 1, https://doi.org/10.1063/1.555985 . [all data]

Andon and Connett, 1980, 2
Andon, R.J.L.; Connett, J.E., Calibrants for thermal analysis. Measurement of their enthalpies of fusion by adiabatic calorimetry, Thermochim. Acta, 1980, 42, 241-247. [all data]

Notes

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• Symbols used in this document:
  

  Tfus	Fusion (melting) point
  Ttriple	Triple point temperature
  ΔHtrs	Enthalpy of phase transition
  ΔStrs	Entropy of phase transition
  ΔfusH	Enthalpy of fusion
  ΔvapH°	Enthalpy of vaporization at standard conditions

• Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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