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1-Propanethiol, 2-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, 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
Tboil361. ± 1.KAVGN/AAverage of 11 values; Individual data points
Quantity Value Units Method Reference Comment
Tfus128.29KN/AMorris, Lanum, et al., 1960Uncertainty assigned by TRC = 0.02 K; TRC
Quantity Value Units Method Reference Comment
Ttriple128.31KN/AScott, McCullough, et al., 1958Uncertainty assigned by TRC = 0.05 K; TRC
Quantity Value Units Method Reference Comment
Tc559.5KN/AMajer and Svoboda, 1985 
Quantity Value Units Method Reference Comment
Deltavap8.296kcal/molN/AMajer and Svoboda, 1985 
Deltavap8.27kcal/molN/AReid, 1972AC
Deltavap8.30 ± 0.02kcal/molEHubbard, Good, et al., 1958ALS
Deltavap8.48kcal/molN/AHubbard, Good, et al., 1958DRB
Deltavap8.30kcal/molVScott, McCullough, et al., 1958, 2ALS

Enthalpy of vaporization

DeltavapH (kcal/mol) Temperature (K) Method Reference Comment
7.412361.6N/AMajer and Svoboda, 1985 
8.03329.A,EBStephenson and Malanowski, 1987Based on data from 314. - 399. K. See also Scott, McCullough, et al., 1958, 2 and Osborn and Douslin, 1966.; AC
7.96 ± 0.02321.CScott, McCullough, et al., 1958, 2AC
7.72 ± 0.02340.CScott, McCullough, et al., 1958, 2AC
7.41 ± 0.02361.CScott, McCullough, et al., 1958, 2AC

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
321. - 362.11.910.2813559.5Majer 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
315.4 - 398.364.006651237.282-52.837Osborn and Douslin, 1966

Enthalpy of fusion

DeltafusH (kcal/mol) Temperature (K) Reference Comment
1.1908128.31Scott, McCullough, et al., 1958, 2DH
1.19128.3Domalski and Hearing, 1996AC

Entropy of fusion

DeltafusS (cal/mol*K) Temperature (K) Reference Comment
92.81128.31Scott, McCullough, et al., 1958, 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.

Morris, Lanum, et al., 1960
Morris, J.C.; Lanum, W.J.; Helm, R.V.; Haines, W.E.; Cook, G.L.; Ball, J.S., Purification and Properties of Ten Organic Sulfur Compounds, J. Chem. Eng. Data, 1960, 5, 112-6. [all data]

Scott, McCullough, et al., 1958
Scott, D.W.; McCullough, J.P.; Messerly, J.F.; Pennington, R.E.; Hossenlopp, I.A.; Finke, H.L.; Waddington, G., 2-Methyl-1-propanethiol: Chemical Thermodynamic properties and Rotational isomerism., J. Am. Chem. Soc., 1958, 80, 55-9. [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]

Reid, 1972
Reid, Robert C., Handbook on vapor pressure and heats of vaporization of hydrocarbons and related compounds, R. C. Wilhort and B. J. Zwolinski, Texas A Research Foundation. College Station, Texas(1971). 329 pages.$10.00, AIChE J., 1972, 18, 6, 1278-1278, https://doi.org/10.1002/aic.690180637 . [all data]

Hubbard, Good, et al., 1958
Hubbard, W.N.; Good, W.D.; Waddington, G., The heats of combustion, formation and isomerization of the seven isomeric C4H10S alkane thiols and sulfides, J. Phys. Chem., 1958, 62, 614-617. [all data]

Scott, McCullough, et al., 1958, 2
Scott, D.W.; McCullough, J.P.; Messerly, J.F.; Pennington, R.E.; Hossenlopp, I.A.; Finke, H.L.; Waddington, G., 2-Methyl-1-propanethiol: Chemical thermodynamic properties and rotational isomerism, J. Am. Chem. Soc., 1958, 80, 55-59. [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, 1966
Osborn, A.G.; Douslin, D.R., Vapor Pressure Relations of 36 Sulfur Compounds Present in Petroleum., J. Chem. Eng. Data, 1966, 11, 4, 502-509, https://doi.org/10.1021/je60031a014 . [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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