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Pyridine, 3-methyl-

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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, Kenneth Kroenlein 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
Tboil417.0 ± 0.7KAVGN/AAverage of 20 out of 22 values; Individual data points
Quantity Value Units Method Reference Comment
Tfus255. ± 2.KAVGN/AAverage of 8 values; Individual data points
Quantity Value Units Method Reference Comment
Ttriple255.010KN/AScott, Good, et al., 1963Uncertainty assigned by TRC = 0.06 K; by extrapolation of 1/f, from calorimeter, to zero; TRC
Quantity Value Units Method Reference Comment
Tc645.KN/AMajer and Svoboda, 1985 
Tc644.85KN/AAmbrose and Grant, 1957Uncertainty assigned by TRC = 0.5 K; TRC
Quantity Value Units Method Reference Comment
Deltavap10.6 ± 0.4kcal/molAVGN/AAverage of 10 values; Individual data points

Enthalpy of vaporization

DeltavapH (kcal/mol) Temperature (K) Method Reference Comment
8.927417.3N/AMajer and Svoboda, 1985 
10.3 ± 0.02320.EBChirico, Knipmeyer, et al., 1999Based on data from 314. - 457. K.; AC
9.78 ± 0.02360.EBChirico, Knipmeyer, et al., 1999Based on data from 314. - 457. K.; AC
9.23 ± 0.02400.EBChirico, Knipmeyer, et al., 1999Based on data from 314. - 457. K.; AC
8.63 ± 0.05440.EBChirico, Knipmeyer, et al., 1999Based on data from 314. - 457. K.; AC
9.58389.AStephenson and Malanowski, 1987Based on data from 374. - 458. K.; AC
9.01465.AStephenson and Malanowski, 1987Based on data from 450. - 570. K.; AC
8.80576.AStephenson and Malanowski, 1987Based on data from 561. - 645. K.; AC
9.87362.EB,IPStephenson and Malanowski, 1987Based on data from 347. - 458. K. See also Osborn and Douslin, 1968.; AC
9.87362.EBStephenson and Malanowski, 1987Based on data from 347. - 458. K. See also Scott, Good, et al., 1963, 2.; AC
10.4 ± 0.02313.CMajer, Svoboda, et al., 1984AC
10.2 ± 0.02328.CMajer, Svoboda, et al., 1984AC
10.0 ± 0.02343.CMajer, Svoboda, et al., 1984AC
9.66 ± 0.02368.CMajer, Svoboda, et al., 1984AC
9.61 ± 0.02372.CScott, Good, et al., 1963, 2AC
9.30 ± 0.02393.CScott, Good, et al., 1963, 2AC
8.94 ± 0.02417.CScott, Good, et al., 1963, 2AC
9.80369.MGHerington and Martin, 1953Based on data from 354. - 418. K.; AC

Enthalpy of vaporization

ΔvapH = A exp(-βTr) (1 − Tr)β
    ΔvapH = Enthalpy of vaporization (at saturation pressure) (kcal/mol)
    Tr = reduced temperature (T / Tc)

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Temperature (K) A (kcal/mol) beta Tc (K) Reference Comment
298. - 417.14.590.2913645.Majer and Svoboda, 1985 

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
347.19 - 457.724.173081484.307-61.606Osborn and Douslin, 1968

Enthalpy of sublimation

DeltasubH (kcal/mol) Temperature (K) Reference Comment
14.9240.Stephenson and Malanowski, 1987Based on data from 225. - 255. K.; AC

Enthalpy of fusion

DeltafusH (kcal/mol) Temperature (K) Reference Comment
3.3891255.01Scott, Good, et al., 1963, 2DH
3.389255.Domalski and Hearing, 1996AC

Entropy of fusion

DeltafusS (cal/mol*K) Temperature (K) Reference Comment
13.29255.01Scott, Good, et al., 1963, 2DH

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

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.

Scott, Good, et al., 1963
Scott, D.W.; Good, W.D.; Guthrie, G.B.; Todd, S.S.; Hossenlopp, I.A.; Osborn, A.G.; McCullough, J.P., Chemical Thermodynamic Properties and Internal Rotation of Methylpyridines II. 3-Methylpyridine, J. Phys. Chem., 1963, 67, 685. [all data]

Majer and Svoboda, 1985
Majer, V.; Svoboda, V., Enthalpies of Vaporization of Organic Compounds: A Critical Review and Data Compilation, Blackwell Scientific Publications, Oxford, 1985, 300. [all data]

Ambrose and Grant, 1957
Ambrose, D.; Grant, D.G., The Critical Temperatures of Some Hydrocarbons and Pyridine Bases, Trans. Faraday Soc., 1957, 53, 771. [all data]

Chirico, Knipmeyer, et al., 1999
Chirico, R.D.; Knipmeyer, S.E.; Nguyen, A.; Steele, W.V., Thermodynamic properties of the methylpyridines. Part 2. Vapor pressures, heat capacities, critical properties, derived thermodynamic functions between the temperatures 250 K and 560 K, and equilibrium isomer distributions for all temperatures >=250 K, The Journal of Chemical Thermodynamics, 1999, 31, 3, 339-378, https://doi.org/10.1006/jcht.1998.0451 . [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]

Osborn and Douslin, 1968
Osborn, Ann G.; Douslin, Donald R., Vapor pressure relations of 13 nitrogen compounds related to petroleum, J. Chem. Eng. Data, 1968, 13, 4, 534-537, https://doi.org/10.1021/je60039a024 . [all data]

Scott, Good, et al., 1963, 2
Scott, D.W.; Good, W.D.; Guthrie, G.B.; Todd, S.S.; Hossenlopp, I.A.; Osborn, A.G.; McCullough, J.P., Chemical thermodynamic properties and internal rotation of methylpyridines. II. 3-methylpyridine, J. Phys. Chem., 1963, 67, 685-689. [all data]

Majer, Svoboda, et al., 1984
Majer, V.; Svoboda, V.; Lencka, M., Enthalpies of vaporization and cohesive energies of pyridine and isomeric methylpyridines, J. Chem. Thermodyn., 1984, 16, 1019-1024. [all data]

Herington and Martin, 1953
Herington, E.F.G.; Martin, J.F., Vapour pressures of pyridine and its homologues, Trans. Faraday Soc., 1953, 49, 154, https://doi.org/10.1039/tf9534900154 . [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]


Notes

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