o-Toluidine

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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:
BS - Robert L. Brown and Stephen E. Stein
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.
DH - Eugene S. Domalski and Elizabeth D. Hearing

Quantity Value Units Method Reference Comment
Tboil473. ± 2.KAVGN/AAverage of 16 values; Individual data points
Quantity Value Units Method Reference Comment
Tfus252. ± 8.KAVGN/AAverage of 10 values; Individual data points
Quantity Value Units Method Reference Comment
Ttriple258.730KN/ASteele, Chirico, et al., 1994Uncertainty assigned by TRC = 0.005 K; TRC
Quantity Value Units Method Reference Comment
Tc694.15KN/AGlaser and Ruland, 1957Uncertainty assigned by TRC = 2. K; TRC
Quantity Value Units Method Reference Comment
Pc37.0000atmN/AGlaser and Ruland, 1957Uncertainty assigned by TRC = 2.5000 atm; TRC
Quantity Value Units Method Reference Comment
Δvap14. ± 3.kcal/molAVGN/AAverage of 7 values; Individual data points

Enthalpy of vaporization

ΔvapH (kcal/mol) Temperature (K) Method Reference Comment
13.8300.EB,IPSteele, Chirico, et al., 1994, 2Based on data from 290. - 517. K.; AC
13.0340.EB,IPSteele, Chirico, et al., 1994, 2Based on data from 290. - 517. K.; AC
12.3380.EB,IPSteele, Chirico, et al., 1994, 2Based on data from 290. - 517. K.; AC
11.6420.EB,IPSteele, Chirico, et al., 1994, 2Based on data from 290. - 517. K.; AC
10.9460.EB,IPSteele, Chirico, et al., 1994, 2Based on data from 290. - 517. K.; AC
10.2500.EB.IPSteele, Chirico, et al., 1994, 2Based on data from 290. - 517. K.; AC
12.0406.AStephenson and Malanowski, 1987Based on data from 391. - 474. K. See also Dreisbach and Shrader, 1949 and Boublik, Fried, et al., 1984.; AC

Antoine Equation Parameters

log10(P) = A − (B / (T + C))
    P = vapor pressure (atm)
    T = temperature (K)

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Temperature (K) A B C Reference Comment
391.61 - 473.54.185971617.232-87.126Dreisbach and Shrader, 1949Coefficents calculated by NIST from author's data.

Enthalpy of fusion

ΔfusH (kcal/mol) Temperature (K) Reference Comment
1.936249.55Meva'a and Lichanot, 1990DH
2.787287.6Steele, Chirico, et al., 1994, 2AC

Entropy of fusion

ΔfusS (cal/mol*K) Temperature (K) Reference Comment
7.6249.55Meva'a and Lichanot, 1990DH

In addition to the Thermodynamics Research Center (TRC) data available from this site, much more physical and chemical property data is available from the following TRC products:


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.

Steele, Chirico, et al., 1994
Steele, W.V.; Chirico, R.D.; Nguyen, A.; Knipmeyer, S.E., The thermodynamic properties of 2-methylaniline and trans-(R,S)-decahydroquinoline, J. Chem. Thermodyn., 1994, 26, 5, 515, https://doi.org/10.1006/jcht.1994.1061 . [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]

Steele, Chirico, et al., 1994, 2
Steele, W.V.; Chirico, R.D.; Nguyen, A.; Knipmeyer, S.E., The thermodynamic properties of 2-methylaniline and trans-(r,S)-decahydroquinoline, J. Chem. Thermodyn., 1994, 26, 515-544. [all data]

Stephenson and Malanowski, 1987
Stephenson, Richard M.; Malanowski, Stanislaw, Handbook of the Thermodynamics of Organic Compounds, 1987, https://doi.org/10.1007/978-94-009-3173-2 . [all data]

Dreisbach and Shrader, 1949
Dreisbach, R.R.; Shrader, S.A., Vapor Pressure--Temperature Data on Some Organic Compounds, Ind. Eng. Chem., 1949, 41, 12, 2879-2880, https://doi.org/10.1021/ie50480a054 . [all data]

Boublik, Fried, et al., 1984
Boublik, T.; Fried, V.; Hala, E., The Vapour Pressures of Pure Substances: Selected Values of the Temperature Dependence of the Vapour Pressures of Some Pure Substances in the Normal and Low Pressure Region, 2nd ed., Elsevier, New York, 1984, 972. [all data]

Meva'a and Lichanot, 1990
Meva'a, L.M.; Lichanot, A., Proprietes thermodynamiques en phase condensee des ortho, meta et para fluorotoluene, cresol et toluidine, Thermochim. Acta, 1990, 158, 335-345. [all data]


Notes

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